A Deva (देव Sanskrit and Pāli; Mongolian тэнгэр, tenger) in Buddhism is a type of celestial beings or gods who share the god-like characteristics of being more powerful, longer-lived, and, in general, much happier than humans, although the same level of veneration is not paid to them as to Buddhas. Other words used in Buddhist texts to refer to similar supernatural beings are devatā ("deities") and devaputta ("son of god"). While the former is a synonym for deva ("celestials"), the latter refers specifically to one of these beings who is young and has newly arisen in its heavenly world. Types Deva refers to a class of beings or a path of the six paths of the incarnation cycle. It includes some very different types of beings which can be ranked hierarchically according to the merits they have accumulated over lifetimes. The lowest classes of these beings are closer in their nature to human beings than to the higher classes of deva. Devas can be degraded to humans or the beings in the three evil paths once they have consumed their merits. The Devas fall into three classes depending upon which of the three dhātus, or "realms" of the universe they are born in. The devas of the Ārūpyadhātu have no physical form or location, and they dwell in meditation on formless subjects. They achieve this by attaining advanced meditational levels in another life. They do not interact with the rest of the universe. The devas of the Rūpadhātu have physical forms, but are genderless and passionless. They live in a large number of "heavens" or deva-worlds that rise, layer on layer, above the earth. These can be divided into five main groups: The Śuddhāvāsa devas are the rebirths of Anāgāmins, Buddhist religious practitioners who died just short of attaining the state of Arhat (Brahma Sahampati, who appealed to the newly enlightened Buddha to teach, was an Anagami from a previous Buddha). They guard and protect Buddhism on earth, and will pass into enlightenment as Arhats when they pass away from the Śuddhāvāsa worlds. The highest of these worlds is called . The devas remain in the tranquil state attained in the fourth dhyāna. The devas rest in the bliss of the third dhyāna. The Ābhāsvara devas enjoy the delights of the second dhyāna. They are also more interested in and involved with the world below than any of the higher