2502. Now, what the brain is for the earthly body, that also must it be for the eye. The eye is not simply brain, but a representation also of the whole body. The brain can, forsooth, be nowhere without its body; if therefore it is elevated into the eye, so also must it take up and elevate the body along with itself.
2503. The eye is an entire body, a whole animal. Again, in the next place, the animal systems, such as limbs, thorax and abdomen, have been most distinctly represented in it. The light is seized, respired, digested, and hence felt by the eye.
2504. As the light represents chaotically the whole of nature, but this material nature enters completely into the animal through the processes of the trunk, so does the light enter it through the eye. The eye is the chaotic representation of all material processes of a body.
2505. The limbs or members of the eye are repeated in the ocular muscles and the sclerotic or bony ring; in many Fishes the eye stands upon a flexible pedicle, as in the Crabs. The ocular muscles move the eye in different directions like a hand.
2506. The sclerotic corresponds to the corium, the cornea to the digital unguis, or finger-nail.
2507. The choroid or vascular coat, is the respiratory system or lung in the eye. The iris corresponds to the larynx, the pupil to the glottis; its expansion and contraction is a respiratory movement.
2508. The choroid coat incloses also an osseous mass, the lens—a vertebral body. The morbid states of the lens are osseous diseases, such as gout.
2509. In the chambers of the eye, water, as being a product of digestion, is constantly secreted.
2510. The orbitar cavity is a mouth with salivary glands—giving vent to tears.
2511. The lachrymal canal is a branchial duct, which opens into the nose, like the Eustachian tubes did from the ear into the mouth.