Felicity has been a treasure since the onset of mankind's life on the earth and everyone has been in search for it. The conditions, the actions, the ethics and the consequences of most people throughout history have shown that they took the wrong path in order to find this treasure. Some people have mistakenly gathered and made some treasures, but according to holy Quran which says in the Surah Al-Noor that whatever they imagined is like a mirage: " their deeds are like the mirage in a desert, which the thirsty man deems to be water; until when he comes to it he finds it to be nothing" (Surah AL-NOOR, verse 39). The one who travels in the desert gets so thirsty, and when he looks far away, he sees huge waves of water which is flowing; but when he arrives to that point, he sees the same desert he just came from.
source : erfan.ir