The Unborn was the content of Bankei's satori which sprang up from his whole being, and enveloped it, so that he felt as if he were living in and with the Unborn all the time. The Unborn with him, therefore, was not a static conception. He did not intuit it spatially but temporally; he lived it, and while living he knew he was it---which is satori.
---from "Living by Zen" by D.T. Suzuki