Light is such a beautiful word. It is both a delight (see what I did there) to say, but it also has so many meanings.
Light can be the light from the sun. When it shines on your face, shines away darkness.
Light can be easy. Light reading for example. It’s easy, it’s light, it’s simple.
Light can be the opposite of heavy. When something is light in that way, it is easier to carry, both literally and seen as a more symbolic thing.
Light can be few things. To live light or travel light is a beautiful thing, because it allows you to do other stuff than worry about material things.
Light can be spread, light can be a part of your personality. Being the light is just one word for so many personality traits.