Here is some more meanings of light

light
light of day
light of heavenly luminaries (moon, sun, stars)
day-break, dawn, morning light
daylight
lightning
light of lamp
light of life
light of prosperity
light of instruction
light of face (fig.)
Jehovah as Israel's light

Or I think I put these definitions up top.

Now, another few quick things to add
M.J. is used for the rites of purification
M.J. heals the sick
MJ gives sight to the blind

More on the way