Asalamu 'alaikum,
Indeed with Allah lies complete satisfaction and the heart that yearns for the view of His face is absolved of happiness of both the worlds.
With Allah(his thought) in the heart,no bughz or evil ca ever touch it and insha'Allah it will continue to stay pure.
Two shuyookh at my place were discussing one of them told us about it,that an animosity that you get for the sake of Allah is better than a friend for the sake of this world.
The more Allah's dhikr and kalam is read the more tranquil it gets insha'Allah.
No tranquility is there except in the speech and remembrance of our Rabb ,Most High.
Salah,when we stand,before Allah,with sincerety and firm belief that we are standing before Our Rabb,who is the controller ,manager and creator of everyone and whose relation with us will never end, there might be relief insha'Allah.Rasulullah

used to say (the mafhoom of which,is)that salah is the coolness of my eyes.
Perhaps, a reminder of the relationship of our servitude to Our Rabb and a connection with Him in this duniya,which humbles egos and kill it that the feet and head are at same level in front of Allah.
Also du'a is a thing which can connect us and soften our hearts in sha'Allah.Asking Allah with humility in loneliness and company.
Also our way of life is Islam,which insures a complete rememberance of Allah in every apect of life,so that we never lose touch with Allah and His rememberance.