Some persons can give themselves away to an ambitious pursuit and have that be all the giving-themselves-away-to-something they need to do. Though sometimes this changes as the players get older and the pursuit more stress-fraught. American experience seems to suggest that people are virtually unlimited in their need to give themselves away, on various levels. Some just prefer to do it in secret.
Infinite Jest (ed. Hachette UK, 2011) - ISBN: 9780748130986