Question: How does the human see?" I know that there's sensors in the back of the eye ball that turns it into signals into the brain, but how does it become seen all inside our head, if its just signals

Light passes through the cornea and is inverted (turned upside down). It then lands on the retina at the back of the eye. This light energy is transformed by photoreceptors to nervous impulses. These impulses travel via the optic nerve to various sections of the brain, but particularly the visual cortex. The visual cortex decodes the incoming information and constructs the images we see.