These are only hints and guesses,
Hints followed by guesses;
And the rest is prayer, observance, discipline,
Thought and action.
The hint half guessed, the gift half understood,
Is Incarnation.
~ from "The Dry Salvages" by T.S. Eliot
Service is one of the two main levers of evolution: one is meditation, the other is service. Service, of whatever kind, gradually distances you from yourself. As your service grows, expands outwards from yourself, you do not lose touch with yourself but you become less and less concerned with your own ego, your personality expression. Service is the impulse of the soul, the carying out of soul purpose.