Our (i) of the world is only possible through the (ii) of the eye and brain. For without light striking the retina, there would be no image for the occipital lobe to project, so to speak, onto the conscious mind. And without the occipital lobe to (iii) visual input from the eyes, there would be no coherent reality.
Blank (i)
intimation
apprehension
interpolation
Blank (ii)
percipience
construal
collaboration
Blank (iii)
manage
reform
locate