But for Nietzsche, life means inclination and feeling, strong passion, even bias. No interpretation gives reality as it really is. They breed commentaries, even a critical periodical article or two, but they do not further creative life. They do not inspire. Kantian morality, by detaching willing from interest and love, is detached from life itself.
Life is attachment, interest, passion.
Art and philosophy grow out of attachment, interest, and passion. The will is not practical reason, not reason of any kind. Each interpretation is, initially, an expression of an individual creative spirit. On the other hand, great philosophies, works of art, etc. By these ossified interpretations and standards, all new creations are subsequently judged and discouraged.