Yama (Hinduism)
Yama (Sanskrit: यम) is the lord of death in Hinduism, first recorded in the Vedas. Yama belongs to an early stratum of Indo-Iranian theology. In Vedic tradition Yama was considered to have been the first mortal who died and espied the way to the celestial abodes, thus in virtue of precedence he became the ruler of the departed. In some passages, however, he is already regarded as the god of death. Yama's name can be interpreted to mean "twin", and in some myths he is paired with a twin sister Yamī.
Yama is assisted by Chitragupta who is assigned with the task of keeping complete records of actions of human beings on the earth, and upon their death deciding to have them reincarnated as a superior or inferior organism, depending on their actions on the earth (Karma). "In Hinduism, Yama often is considered as ‘Kala’ or time, for Yama comes in a particular time and that time is naturally selected; nobody can stop his coming and change the timing. That after birth a living body gradually approaches towards death through decay or disease or because of accident is just a matter of time or duration of time at the end of which there comes Death. The coming of Death may be delayed by treatment of the patient or the sick person or by the pursuit of a better way of life, but the inevitability of death can never be stopped by any means. That is why Yama is called “Kala’ or time, because the coming of Death is just a matter of time in accordance with the law and system of nature."
Yama is also the lord of justice and is sometimes referred to as Dharma, in reference to his unswerving dedication to maintaining order and adherence to harmony.
Read more about Yama (Hinduism): Characteristics, Subordination To Shiva and Vishnu