Tō-in (東 院) means the party east (precint) is (東) of a Buddhist temple. Tō is one possible readings of the kanji east, as in Tokyo. In (院) is a set of well-organized building.
Tsūyadō (通夜 堂);, it is a free shelter offered by a temple for aruki henro (walkiing pilgrims) during Shikoku pilgrimage. as for henro goya, the comfort is very basic . Some are tiny (2 or 3 beds), others huge as in the temple 51 ishite-ji.