Whether I are going or staying or sitting or lying down,
the whole world is my own self. I must find out
whether the mountains, rivers, grass, and forests exist in my own mind or exist outside it. I must analyze the ten thousand things, dissect them minutely, and when I take this to the limit I will come to the limitless, when I search into it I come to the end of search, where thinking goes no further and distinctions vanish. When I smash the citadel of doubt, then the Buddha is simply myself.
Daikaku