Q í ni (Sanskrit), also known as Huotian, is the god of fire in Vedas and Hinduism. A Q í ni - अग्न is itself a noun for "flame" in Sanskrit, and is a cognate word with the Latin flame - "ignis" (and has the same root as the English verb "ignite"). One of the Twelve Heavens and Eight Heavens in Esoteric Buddhism, he is the guardian deity of the southeast and one of the important guardian deities in Esoteric Buddhism. There are various images, and in the current picture of the Mandala in the realm of the Tibetan Empire, Huotian is located in the southeast corner of the outer courtyard, in the shape of an immortal with four arms. The right and second hands respectively hold triangular seals and prayer beads, while the left and second hands respectively hold bathtubs and immortal sticks, living in flames. In the outer part of the Diamond Realm Mandala, Huotian is located in the west and has a flesh colored body. He holds a triangular seal in his right hand and a celestial staff in his left hand. According to the "Twelve Days Offering Ceremony", the Fire Heaven rides on a green sheep, covered in flames, with four arms. The right and second hands respectively hold green bamboo and military weapons, and the left and second hands respectively hold palm and prayer beads. Two days, the woman held the smallpox and placed the ascetic immortal on both sides. In addition, when practicing Buddhism in esoteric Buddhism, the Fire Heavenly Altar is first set up to offer offerings to the Fire Heavenly, and then to offer offerings to the various deities.

Character Introduction
The god of fire in Vedas and Brahmanism in India. Also known as Aona, Eqini, Ajini. Freely translated as fire. At the beginning of creation, the Creator Brahma used his navel and eyes to create eight kind-hearted heavenly gods, known as "Bosu". The meaning is to be kind and generous; Among them, Lao Liu was the Fire God Agni, and with his greatest power, he became the leader of Bosu.
The word Agni itself is a noun for the Sanskrit word "flame" and is a cognate word with the Latin word "Ignis" (as well as the English verb "Ignite").
As the deification of fire, Agni symbolizes the miracle of eternal flame immortality. The ancient Indians believed that the offerings offered to Agni fire would be purified and transmitted to other gods, giving Agni the attributes of purification and messenger.

Agni is a typical deity who experienced the rise of the belief in the Tripartite Gods (Brahma, Vishnu, and Shiva), but still retained a certain level of notoriety towards the belief in nature (formerly the Deva tribe).
According to the Rigveda, there are three forms of origin or existence, namely, in the three realms, it is the sun in the heavenly realm, lightning fire in the empty realm, and sacrificial fire in the earthly realm. This is the embryonic thought of the Hindu gods Brahma, Vishnu, and Shiva. In the Rigveda, the hymn of special praise to the god of fire accounts for one-fifth of all hymns, second only to Indra. During the ritual, the offerings can be transmitted to the gods, so it is considered as an envoy between the gods and people. In addition to humans and animals, the god of fire is also commonly found in plants and water; Besides festivals, they are also often worshipped at the time of birth, entry, or marriage. The whole body is red, shining like the sun, with a complexion like cheese. It has no head or feet, or three heads and seven tongues. It has ten faces, golden eyes, thousand eyes, etc. Among the gods, he has the closest relationship with humans, capable of breaking through darkness, burning up impurities, subduing demons and monsters, and is also known as the "Slayer of the Rasha (Demon)". In addition, it can bestow favor on worshippers and rescue them from danger.