What are Sen no Rikyu’s 7 rules

Rikyu’s 7 rules

1.  Make a satisfying bowl of tea.

2.  Lay the charcoal so that the water boils efficiently.

3.  Provide the sense of warmth in the winter and coolness in the summer.

4.  Arrange the flowers as though they were in the field.

5.  Be ready ahead of time.

6.  Be prepared in case it should rain.

7.  Act with utmost consideration toward your guests.