Returning to the source is stillness, which is the way of nature. The way of nature is unchanging. Knowing constancy is insight.
Try to change it and you will ruin it. Try to hold it and you will lose it.
When bitter enemies make peace, surely some bitterness remains.
Seal the openings, shut the doors, dull the sharpness, untie the knots, dim the light, become one with the dust. This is called the profound union.
Use your light, but dim your brightness.
Hear no evil. See no evil. Speak no evil.