"The Prophet (SAW) said, 'Souls are like crowds which gather together. The ones who met before get along well. The ones who did not meet before, cannot get along very well and separate." (Bukhati, Muslim, Abu Dawud)
"Whosoever fears Me & refrains from it [evil] will receive from Me such Iman, The sweetness of which he will taste(feel) in his heart" [Kanzul Ummaal].