After ten years of apprenticeship, Tenno achieved the rank
of Zen teacher. One rainy day, he went to visit the famous
master Nan-in. When he walked in, the master greeted him
with a question, "Did you leave your wooden clogs and
umbrella on the porch?"
"Yes," Tenno replied.
"Tell me," the master continued, "did you place your
umbrella to the left of your shoes, or to the right?"
Tenno did not know the answer, and realized that he had not
yet attained full awareness. So he became Nan-in's
apprentice and studied under him for ten more years.
