Keido Fukushima - It's another world in the pot
別 是 一壺 天
Betsu-ni kore itte-no en
Shibayama Zenkei's comment: "In the pot is its comfort and relief. The natural beauty--and state of mind-of another world."
Almost certainly related to the phrase: Sun and moon are eternally in the pot. Shibayama's comment: "In another world (that of enlightenment), time doesn't exist. According to legend, during the Later Han period, a hermit called the Lord of the Pot made a single pot his dwelling."
Signed: Tofuku Koyu donin (東福更幽道人)