Ton'a (頓阿 , 1289-1372), also spelled as Tonna; lay name – Nikaidō Sadamune 二階堂貞宗. A Japanese Buddhist poet, student of Nijō Tameyo 二条為世. Ton'a took a tonsure at Enryaku-ji Temple, but was later associated with the Ji sect 時宗 (founded by Ippen). He looked up to Saigyō's poetic genius. Here are two of his most well-known poems:
naku semi no
koe mo hitotsu ni
hibikite
matsu kage suzushi
yama no takitsuse
Crying cicadas
are in one voice with the sound
that reverberates
– cool, in the shade of the pines –
from a mountain cascade.[1]
ne ni tatete
nageku wa nani zo
utsusemi no
munashiki yo to wa
shiranu mono ka wa
Just what can it be
that makes them cry so loudly?
But, ah, of course: cicadas would know
how empty is this world
of the cicada shell.[2]