wa alaykum salam
Firstly we should realise that TV programmes, even documentaries tend to sensationalise stories, make them more exciting, make what they show more interesting, and can be selective with the facts. Well he was not dead dead. There are cases when people's hearts stop, even some who have been declared "dead", and later the person amazingly emerges alive, just before being buried or in the morgue. - So, people say they are back from the dead. - This is incorrect. Just because a person stopped breathing or whose heart stopped, does not mean they are dead. They may still have a chance to be resuscitated. - Most are also not going to be happy with the medical treatment they received!
Dead is when you are well and truly dead, and there is no coming back from that. In Islam we learn that it is when the Angels of death take the soul. This is the prescribed time that only Allah, the Lord of all that exists, the giver and taker of life knows.
With regards to out of body experiences, then these are issues to do with the brain. Some people have them after taking psychedelic drugs such as LSD. Again there is medical evidence to show that Out of Body experiences are a medical condition, rather than having any spiritual or religious dimension.
Some people can have various phenomena happen to them. - Scientists did experiments by attaching special electronic probes to people's brains (Left temporoparietal junction) and were able to induce the doppelgänger effect. This is when people see a body double. - In some ways this is similar to an out of body experience as they see themselves and view it as reality.
The following is from Wikipedia.
http://en.wikipedia.org/wiki/Doppelgänger
"Left temporoparietal junction
In September 2006, it was reported in Nature[2] that Shahar Arzy and colleagues of the University Hospital, Geneva, Switzerland, unexpectedly had reproduced an effect strongly reminiscent of the doppelgänger phenomenon via the electromagnetic stimulation of a patient's brain. They applied focal electrical stimulation to a patient's left temporoparietal junction while she lay flat on a bed. The patient immediately felt the presence of another person in her "extrapersonal space." Other than epilepsy, for which the patient was being treated, she was psychologically fit."
The other person was described as young, of indeterminate sex, silent, motionless, and with a body posture identical to her own. The other person was located exactly behind her, almost touching and therefore within the bed on which the patient was lying.
A second electrical stimulation was applied with slightly more intensity, while the patient was sitting up with her arms folded. This time the patient felt the presence of a "man" who had his arms wrapped around her. She described the sensation as highly unpleasant and electrical stimulation was stopped.
Arzy and his colleagues suggest that the left temporoparietal junction of the brain evokes the sensation of self image—body location, position, posture etc. When the left temporoparietal junction is disturbed, the sensation of self-attribution is broken and may be replaced by the sensation of a foreign presence or copy of oneself displaced nearby.
This copy mirrors the real person's body posture, location and position. Arzy and his colleagues suggest that the phenomenon they created is seen in certain mental illnesses, such as schizophrenia, particularly when accompanied by paranoia, delusions of persecution and of alien control. Nevertheless, the effects reported are highly reminiscent of the doppelgänger phenomenon.[3] Accordingly, some reports of doppelgängers may well be due to failure of the left temporoparietal junction.
Recent (2007) studies have shown that experiences somewhat similar to OBEs can be induced by electrical brain stimulation (particularly the temporoparietal junction). Some of those who experience OBEs claimed to have willed themselves out of their bodies, while others report having found themselves being pulled from their bodies (usually preceded by a feeling of paralysis). In other accounts, the feeling of being outside the body was suddenly realized after the fact, and the experiencers saw their own bodies almost by accident.
As for Shining light stuff, this has not anything to do with the life after. Firstly, because we know that there are stages to a person's death. The person doesnt just die and see bright lights and go to heaven. - They first encounter the Angel of Death as can be seen in the following Hadith:
It was narrated that al-Bara’ (may Allaah be pleased with him) said: We went out with the Messenger of Allaah (peace and blessings of Allaah be upon him) for the funeral of a man from among the Ansaar. We came to the grave and when (the deceased) was placed in the lahd, the Messenger of Allaah (peace and blessings of Allaah be upon him) sat down and we sat around him, as if there were birds on our heads (i.e., quiet and still). In his hand he had a stick with which he was scratching the ground. Then he raised his head and said, “Seek refuge with Allaah from the torment of the grave”, two or three times. Then he said, “When the believing slave is about to depart this world and enter the Hereafter, there come down to him from heaven angels with white faces like the sun, and they sit around him as far as the eye can see. They bring with them shrouds from Paradise and perfumes from Paradise. Then the Angel of Death comes and sits by his head, and he says, ‘O good soul, come forth to forgiveness from Allaah and His pleasure.’ Then it comes out easily like a drop of water from the the mouth of a waterskin. When he seizes it, they do not leave it in his hand for an instant before they take it and put it in that shroud with that perfume, and there comes from it a fragrance like the finest musk on the face of the earth. Then they ascend and they do not pass by any group of angels but they say, ‘Who is this good soul?’ and they say, ‘It is So and so the son of So and so, calling him by the best names by which he was known in this world, until they reach the lowest heaven. They ask for it to be opened to them and it is opened, and (the soul) is welcomed and accompanied to the next heaven by those who are closest to Allaah, until they reach the seventh heaven. Then Allaah says: ‘Record the book of My slave in ‘Illiyoon in the seventh heaven, and return him to the earth, for from it I created them, to it I will return them and from it I will bring them forth once again.’ So his soul is returned to his body and there come to him two angels who make him sit up and they say to him, ‘Who is your Lord?’ He says, ‘Allaah.’ They say, ‘What is your religion?’ He says, ‘My religion is Islam.’ They say, ‘Who is this man who was sent among you?’ He says, ‘He is the Messenger of Allaah (peace and blessings of Allaah be upon him).’ They say, ‘What did you do?’ He says, ‘I read the Book of Allaah and I believed in it.’ Then a voice calls out from heaven, ‘My slave has spoken the truth, so prepare for him a bed from Paradise and clothe him from Paradise, and open for him a gate to Paradise.’ Then there comes to him some of its fragrance, and his grave is made wide, as far as he can see. Then there comes to him a man with a handsome face and handsome clothes, and a good fragrance, who says, ‘Receive the glad tidings that will bring you joy this day.’ He says, ‘Who are you? Your face is a face which brings glad tidings.’ He says, ‘I am your righteous deeds.’ He says, ‘O Lord, hasten the Hour so that I may return to my family and my wealth.’ But when the disbelieving slave is about to depart this world and enter the Hereafter, there come down to him from heaven angels with black faces, bringing sackcloth, and they sit around him as far as the eye can see. Then the Angel of Death comes and sits by his head, and he says, ‘O evil soul, come forth to the wrath of Allaah and His anger.’ Then his soul disperses inside his body, then comes out cutting the veins and nerves, like a skewer passing through wet wool. When he seizes it, they do not leave it in his hand for an instant before they take it and put it in that sackcloth, and there comes from it a stench like the foulest stench of a dead body on the face of the earth. Then they ascend and they do not pass by any group of angels but they say, ‘Who is this evil soul?’ and they say, ‘It is So and so the son of So and so, calling him by the worst names by which he was known in this world, until they reach the lowest heaven. They ask for it to be opened to them and it is not opened.” Then the Messenger of Allaah (peace and blessings of Allaah be upon him) recited (interpretation of the meaning):
“for them the gates of heaven will not be opened, and they will not enter Paradise until the camel goes through the eye of the needle”
[al-A’raaf 7:40]
He said: “Then Allaah says, ‘Record the book of My slave in Sijjeen in the lowest earth, and return him to the earth, for from it I created them, to it I will return them and from it I will bring them forth once again.’ So his soul is cast down.” Then the Messenger of Allaah (peace and blessings of Allaah be upon him) recited the verse (interpretation of the meaning):
“and whoever assigns partners to Allaah, it is as if he had fallen from the sky, and the birds had snatched him, or the wind had thrown him to a far off place”
[al-Hajj 22:31]
He said: “Then his soul is returned to his body, and there come to him two angels who make him sit up and they say to him, ‘Who is your Lord?’ He says, ‘Oh, oh, I don’t know.’ They say, ‘What is your religion?’ He says, ‘Oh, oh, I don’t know.’ Then a voice calls out from heaven, ‘Prepare for him a bed from Hell and clothe him from Hell, and open for him a gate to Hell.’ Then there comes to him some of its heat and hot winds, and his grave is constricted and compresses him until his ribs interlock. Then there comes to him a man with an ugly face and ugly clothes, and a foul stench, who says, ‘Receive the bad news, this is the day that you were promised.’ He says, ‘Who are you? Your face is a face which forebodes evil.’ He says, ‘I am your evil deeds.’ He says, ‘O Lord, do not let the Hour come, do not let the Hour come.’”
Narrated by Abu Dawood, 4753; Ahmad, 18063 – this version was narrated by him. Classed as saheeh by al-Albaani in Saheeh al-Jaami’, 1676.
The angels will question the deceased about their belief in Allah and Aqeedah.
Anything that opposes the Quran and the Sunnah is rejected by us. There will be other explanations for the various accounts people give to what they think they saw or felt whilst lying in hospital beds or the back of ambulances! Quite often these people are pumped with drugs and have had very traumatic experience and much of their body is in extremely critical condition. It would be quite possible that they have temporary disfunction in their brain perhaps around their left temporoparietal junction which was mentioned earlier. However, we do know that it is Allah who gives them a continuation in life, a continuation in the test for them to want to seek out more about their creator, to learn about what might be ahead of them.
Wasalamu Alaykum