The "haijin to" (haiku poets memorial) gorinto (five-stone monument) at Rakushisha, in Arishiyama, Kyoto.
It is a monument dedicated to all haiku poets of the past, present, and future.
The "gorinto" is a traditoal form often found in graveyards representing the five elements - in Japanee thinking, earth, water, fire, wind, and heaven/void.
