In Greek mythology, Thanatos was the personification of death and the son of Nyx, the goddess of night. He was often depicted as a winged and bearded figure, holding a sword or a butterfly, and was considered to be a gentle and peaceful figure. He was responsible for escorting the souls of the dead to the underworld, and was not seen as a malevolent figure like Hades, the god of the underworld.

Thanatos was considered to be one of the many forces of nature, along with his twin brother Hypnos, the god of sleep and his siblings, Morpheus, the god of dreams, and Phobetor, the god of nightmares. He was seen as a necessary and natural part of life and was not considered to be evil or malevolent.

In many myths, Thanatos was portrayed as having a close relationship with his brother Hypnos, as they were often depicted together escorting the souls of the dead to the underworld. Thanatos was also associated with the idea of a peaceful death and was not seen as a source of fear or dread like other death gods in other cultures.