John Cage is pretty useful in relation to questions of knowing and process:
Everybody has a song which is no song at all: it is a process of singing, and when you sing, you are where you are. All I know about method is that when I am not working I sometimes think I know something, but when I am working, it is quite clear that I know nothing.
– John Cage, in Larson, Kay. 2013. Where the Heart Beats. New York: Penguin Books, p.239