A study, published in the journal Nature, showed that mice spending pregnancy in complete darkness had babies with altered eye development.

It indicated tiny quantities of light were needed to control blood vessel growth in the eye. The researchers showed that the retina development requires light that is going through the body during pregnancy.

From darkness we come, into the light.

And yet we are afraid of shadows.

Light could be that which makes us see the... light, but isn't it true that we would name "light" anything we saw?

Close your eyes. Could that be Light?