Thirty-Three Heavens; 忉利天, 三十三天; Sanskrit: Trayastrimsa;
Trayastrimsa, the Thirty Three Heavens, is the second of the Six Heavens of the Desire Realm. Beings of the Thirty Three Heavens are gods that live on the peak of Sumeru, the central mountain of the world, at a height of 80 yojanas and area of 80,000 yojanas square. Their ruler, Sakra, is a devotee of the Buddha. Inhabitants of Trayastrimsa are half a krosa tall (about 1500 feet) and live for 1,000 years, equivalent to 36 million human years, as each day here is equivalent to 100 years of our world.
忉利天，意譯為三十三天，是佛教世界觀中欲界六欲天的第二層天，位於須彌山頂，80 由旬高，四面各為八萬由旬。帝釋天是欲界忉利天之主，加山頂四面各有八大天王，故名三十三天。佛陀曾經上升到忉利天為母親摩耶夫人說法。忉利天的人身高1/2俱盧舍，壽命一千歲，是人間三千六百萬年 (一日相當於人間一百年)。忉利天男女形交，同於世人，而不洩精。
三十三天名號如下: The names of the heavens are:
善法堂天 Sudharmanivasini;
山峯天 Tunganivasini;
山頂天 sikharanivasini;
善見城天 Sudarsananivasini;
鉢私地天 Rasthanivasini;
倶吒天 Koṭaranivasini;
雑殿天 Caitrarathanivasini;
歓喜園天 Nandananivasini;
光明天 Vaibhrajanivasini;
波利耶多天 Pariyatrakanivasini;
離険岸天 amisrataṭanivasini;
谷崖岸天 Kuñjarataṭanivasini;
摩尼蔵天 Manigarbhanivasini;
旋行天 avartacara;
金殿天 Tapaniyagṛha;
鬘影天 Malacchaya;
柔軟天 Nimnonnatacarini;
雑荘厳天 Nanabhaktavicitrasarira;
如意天 Yogavaha;
微細行天 Sūksmacara;
歌音喜楽天 Saṃhṛsṭagitadhvanyabhirata;
威徳輪天 Tejomalini;
月行天 Candrayatanacara / Candrayanacara;
閻摩那娑羅天 Yamanasala;
速行天 Nimesonmesagati;
影照天 Prabalecchacchayasarira / Pramanecchasarira / Pavanecchacchaya / Pravanecchasariresu;
智慧行天 Manicira / salecarah;
衆分天 Nikayasabhagini;
曼陀羅天 Mandalanivasini / Mandalanirata;
上行天 Utkarsacarini / Autkarsa;
威徳顔天 Tejomukha;
威徳燄輪光天 Tejojalini / Tejohvalamalini;
清浄天 Prakirnaka.