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Void is one of several known manifestations of the Light, along with Arc and Solar. It is related to dark energy and gravitational attraction, and can be wielded by Guardians to generate black holes, spatial warps, and other distortions of spacetime. It is also one of four classes of elemental damage common to all Guardian weapons.
The use of Void Light has deep metaphysical connotations, as well being associated with a number of superstitions; it has been described as "weaponizing the unknown". It was once considered taboo to use Void powers, as some viewed the Void to be "dark"; however, the Void itself is defined as being absent of Light or Darkness, and Void Light is merely a means to manipulate it.
Void isn't limited to just the usage of Gravity or Dark Matter/Energy, but the interaction of life and death too. This could be best shown with the Savathun's Song Strike where Wizards ripped the light out of Guardians as Void Shards. Ikora stated that the Void is negation, and Guardians would become the ultimate negators, this would make sense with some of the Guardians abilities such as Titans' Suppression Grenades and Shadowshots which negates the abilities of their enemies.
List of appearances