Actually the best way to relieve your mental suffering is to sit in zazen, even in such a confused state of mind and bad posture. - Shunryu Suzuki

Tozan, a famous Zen master, said, “The blue mountain is the father of the white cloud. The white cloud is the son of the blue mountain. All day long they depend on each other, without being dependent on each other. The white cloud is always the white cloud. The blue mountain is always the blue mountain.” This is a pure, clear interpretation of life. There may be many things like the white cloud and blue mountain: man and woman, teacher and disciple. They depend on each other. But the white cloud should not be bothered by the blue mountain. The blue mountain should not be bothered by the white cloud. They are quite independent, but yet dependent. This is how we live, and how we practice zazen.

To have some deep feeling about Buddhism is not the point; we just do what we should do, like eating supper and going to bed. This is Buddhism.

If we practice hard, concentrate on zazen, and organize our life so that we can sit well, we will find out what we are doing. But you have to be careful in the rules and way you establish. If it is too strict you will fail, if it is too loose, the rules will not work. Our way should be strict enough to have authority, an authority everyone should obey. Thu rules should be possible to observe.
This is how Zen tradition was built up, decided little by little, created by us in our practice. We cannot force anything. But once the rules have been decided, we should obey them completely until they are changed. It is not a matter of good or bad, convenient or inconvenient. You just do it without question. That way your mind is free.