Quotes from Eihei Dogen, one of the founders of the Sōtō school of Zen Buddhism:
Although we say that mountains belong to the country, actually, they belong to those who love them.
When you see forms or hear sounds fully engaging body-and-mind, you grasp things directly. Unlike things and their reflections in the mirror, and unlike the moon and its reflection in the water, when one side is illumined the other side is dark.
To study the buddha way is to study the self. To study the self is to forget the self. To forget the self is to be actualized by myriad things. When actualized by myriad things, your body and mind as well as the bodies and minds of others drop away. No trace of realization remains, and this no-trace continues endlessly.