Suwa-Great-shrine and across the Suwa-lake, divided into two areas with two shrines each.
1) Hon-mia means 'the Origin/basis' shrine.
2) Mae-mia means 'Previous' shrine.
1) Haru-mia means 'Spring' shrine.
2) Aki-mia means 'Autumn' shrine.
To be built the renewal Pillars at each of the four shrines and its four-corners = 4 x 4 = 16 (= 8 + 8) huge trees be carried from the mountain.
It seems violent and dangerous ritual, but all the audience, people feel sacred and solemn....
How about you?