There is a special bonus to altruism. It may seem as if the only change will be putting others before ourselves, but there are actually far greater benefits. When we begin to think of others, we become integrated with them, and they with us.
Anyone who becomes altruistic will receive the most desirable gift of all: omniscience, or total recall and total knowledge. Because altruism is the Creator’s nature, acquiring it equalizes our nature with His, and we begin to think like Him. We begin to know why everything happens, when it should happen, and what to do should we want to make it happen differently. This state is called “equivalence of form,” and this is the purpose of Creation. This state of enhanced perception, of equivalence of form, is why we were created in the first place. This is why we were created united and were then broken—so we could reunite. In the process of uniting, we will learn why Nature does what it does, and become as wise as the Thought that created it.
http://www.youtube.com/watch?v=GFyJYNqQtIc