It's either living mostly for yourself or living for God. When you live mostly for yourself, you seek to have a good time as often as possible. Then invariably, things don't go your way, causing you to see that life is but a string of consecutive unhappy events with only time to enjoy between events. When you live for God, you live to do his will to please him alone and see unhappy events as permitted by the Lord to further your spiritual progress. Overall, living for yourself is an uneven experience, while living for God is more peaceful and rewarding, not to mention that the two journeys would most likely lead you to different destinations.