The image of the moon in the water reminds me of this most beautiful image painted by Dogen in his Genjo Koan ...
Enlightenment is like the moon reflected on the water. The moon does not get wet, nor is the water broken. Although its light is wide and great, the moon is reflected even in a puddle an inch wide. The whole moon and the entire sky are reflected in dewdrops on the grass, or even in one drop of water.
Enlightenment does not divide you, just as the moon does not break the water. You cannot hinder enlightenment, just as a drop of water does not hinder the moon in the sky. The depth of the drop is the height of the moon. Each reflection, however long or short its duration, manifests the vastness of the dewdrop, and realizes the limitlessness of the moonlight in the sky.
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To carry the self forward and illuminate myriad things is delusion. That myriad things come forth and illuminate the self is awakening. ... 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. When you first seek dharma, you imagine you are far away from its environs. At the moment when dharma is correctly transmitted, you are immediately your original self.