Light beings are interdimensional ephemeral beings that come and go from our 3D reality in ways that most often manifest as a glowing light source, ball of light, or glowing humanoid shape of light. This is not so much a “species” as much as it is a type of interdimensional beings characterized by how they manifest visibly as light but do not seem to hold a permanent physical form.
These beings have no-doubt been referred to as “Angels”, “Ghosts”, and other religious references throughout history.