From a 1988 discussion between Julia Martin and Gary Snyder, as found in the 2014 publication "Nobody Home: Writing, Buddhism and Living in Places":

Snyder: I'm not interested in being a consistent poet speaking voice, speaking for my own sentiment and sensibilities. 

Martin: Because? 

Snyder: Because its not interesting! Its like talking about yourself. 

Martin: And what is interesting? 

Snyder: Talking about your nonself! When a bird flies across from one tree to another tree, you can be the bird flying across from one tree to another tree. You don't have to think about the bird, how you feel about the bird. No  difference between self and universe. So just shortcut that illusion. 

Martin: But 'self' informs the way you read the bird. 

Snyder: But you don't have to encourage it. Which isn't to say that sometimes poems aren't written in that first person. The point is to not let yourself be the main character of what you're thinking. If the sense of self is too narrowly located, then people sound like they talk about themselves all the time. 

Martin: Do you evolve conscious strategies other than your formal Zen practice for developing this sort of attitude? 

Snyder: Zen practice is not limited to sitting on a cushion in a zendo. That becomes a habit of life, that's true.