What Does Darkness Symbolize
Darkness is the opposite of light. Dawn is associated with light, whereas night is associated with darkness. Darkness symbolizes the hidden aspects of life. It can also symbolize evil. Often the falsehood is hidden in darkness.
Darkness can also mean one is going through challenging times, but there can be optimism as it is always the darkest before dawn.
Darkness could be used to measure beauty as what would beauty be measured with if there was no darkness symbolized by evil? Only when a comparison is made can the actual value of something be realized. To perceive the beauty of light, it is necessary to know its antithesis, darkness.