The initial architectural forms included the pillar ingrained deep within the[REF] foundation(shinso 心礎)Hōryūji Gojū-no-tou 法隆寺五重塔,(Gojū-no-tō: 5-layered-pagoda) was found to be 3m below ground level.
At this time, pillars were tapered and became roughly circular from the point where they rose beyond the roof, starting as hexagonal from the base.