The consequences of forgetting his own soul
In the Holy Koran, it is mentioned that man should not forget his own soul and also is not allowed to obey his soul. They should only obey God:
1. Do not be like those who have forgotten about God. So he lets them forget about their own souls. Such people are immoral. (59:19)
2. Anyone who has been afraid to stand before his Lord and restrained himself from passion, while have the Garden for a dwelling place. (79:40-41)
3. Anyone who has acted arrogantly and preferred worldly life will have Hades for a dwelling place. (79:37-39)
4. Have you seen someone who has taken his passion as his God? (45:23)
5. The losers will be those who have lost their own souls as well as their own families on Resurrection Day. That will be obvious loss. (39:15)
Sources :
philosophy of ethics (by Morteza Motahari)
English translation of the Quran (by T.B.Irving)