We can stumble and fall, run into things, trip over objects, and bump into walls. When you look at a new born baby, this is exactly what they do, in the light. They seem to be in the dark, in the light. It becomes very plain to see that we learn to be in the light. That we are taught that darkness brings sleep, and in the light we are taught to be awake.
Babies come from the dark, into the light, and scream.
Their first thought could be fear of the light. With the light comes gravity, with the dark comes weightlessness. Floating in a fluid of dark light. Connecting to the oneness of the universal picture, in the dark. Light brings personal information on a physical plane from the darkness of our sub-conscious.