"The one who finds his life will lose it, and the one who loses his life because of me will find it."-Matthew 10:39
It is good to review some basics of Christian teachings. In Matthew 10 Yeshua is telling those that will listen that they have two basic choices. They can either be focused on their selves or they can be focused on the higher life through Christ. The first type will eventually be lost for it is only temporal, whereas the life (or "self", "Psuche") that is Christ centered is something that withstands the Ages.
Another thing about the higher life is that when you help others, which followers of Christ do, it gives you a good feeling. There is an undeniable good feeling in helping others. When I show love to another by helping them my total being, is more at peace.