A painter told me that nobody could draw a tree without in some sort becoming a tree; or draw a child by studying the outlines of its form merely but by watching for a time his motions and plays, the painter enters into his nature and can then draw him at every attitude.
Self satisfaction alone cannot determine if a desire or action is positive or negative. The demarcation between a positive and a negative desire or action is not whether it gives you a immediate feeling of satisfaction, but whether it ultimately results in positive or negative consequences.
Alice laughed. 'There's no use trying,' she said. 'One can't believe impossible things.' I daresay you haven't had much practice,' said the Queen. 'When I was your age, I always did it for half-an-hour a day. Why, sometimes I've believed as many as six impossible things before breakfast. There goes the shawl again!