Yuanwu Keqin quotes:

Searching for the Truth through words and speech is like sticking your head in a bowl of glue.

If you put your conditioned intellect to rest for a long time, suddenly it will be like the bottom falling out of a bucket - then you will naturally be happy and at peace.

There are no mundane things outside of Buddhism, and there is no Buddhism outside of mundane things.

Everything comes from your own heart. This is what one ancient called bringing out the family treasure.