The following is an audio recording of an article by Treeleaf founder and guiding teacher, Jundo Cohen.
"So much of all life is like a neutral canvas to which we add our judgments and reactions, coloring it with our feelings. It is like an empty container or some bland ingredient, like Tofu for example, that can be decorated or flavored as our heart decides. The experience is bad if we make it bad but it is whole, complete, fulfilling and welcoming if our heart makes it so."
Further reading and discussion for this are available on the Treeleaf forum:
The "Inner Switch" of Zazen