Don't care too much about sitting Zen.

It's easy to be caught by ideas of how special or important sitting is, of how beneficial it might be to 'all beings.'

All beings are not served by the self-serving sitter with such ideas in mind.
To do this is to believe that one's knowledge of a thing is as valuable as the thing itself.

Apprehending a butterfly, we have created an illusory butterfly of conception, we do not experience a real insect. It's only when pre-conceptions are dropped-off, of butterflies, of seeing, seer and seen that something real can flutter away unimpeded.

Sitting Zen has a beneficial effect throughout the universe, I know this so I will do it, simply do it, without thinking.