An unconventionally good novel about two diametrically opposed visions of life. Both Narcissus and Goldmund seek fulfillment, but they pursue it in different ways. Narcissus attains it through asceticism, while Goldmund chases it through sexual pleasures and artistic expression.
Although this is not a praise for hedonism, I suspect Herman Hesse intended to draw attention to the importance of life's sensual pleasures for living it fully.
In some way, this novel perfectly embodies Nietzsche's conception of Apollonian and Dionysian states.