Sen no Rikyu quotes:

When you hear the splash Of the water drops that fall Into the stone bowl You will feel that all the dust Of your mind is washed away.

If you have one teapot And can brew your tea in it That will do quite well. How much does he lack himself Who must have a lot of things?

Tea is nought but this: first you heat the water, then you make the tea. Then you drink it properly. That is all you need to know.