Buddha alone together with Buddha
According to Dogen reality is actualized by ‘Buddha alone together with Buddha’ (Yui Butsu Yo Butsu). Huike, the second ancestor of Zen in China, described the experience of this vision in these words:
For those who find this body of reality [dharmakaya], the numberless sentient beings are just one good person: the one person who has been there in accord with This through a million billion aeons.
Zen Dawn: Early Zen Texts from Tun Huang, translated by J.C. Cleary, pp.39-40