It's entirely a question of technique, just as when a carpenter gets fed up with making chairs with four legs, he might feel like making them with one leg. Only then does one feel that what one is doing has meaning, and expect something of oneself.
這完全是技術性的問題，就像木匠做膩了四隻腳的椅子，就要試試看做一隻腳的椅子，才覺得有意義，這是對自己有期許。