十不二門指要鈔 2.25

2.25

Second, from "One should know..." downward, directly showing nonduality through the perish-together of both cultivation and nature. As for 'nature points to the three obstacles' and so forth: since the principle completely becomes phenomena, the obstacles are directly called the principle; therefore, nature is established as three. Since nature is not three yet established as three, cultivation following nature to completion is also not three yet established as three. How could it merely be that each is definitively without three? Moreover, the essences of cultivation and nature are identical. When one understands this thoroughly, then without moving one travels, wandering in the four directions directly to the bodhimaṇḍa—this is called the One Wondrous Vehicle.