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In Vajrayana Buddhism, the Diamond Realm (Skt. वज्रधातु vajradhātu, Traditional Chinese: 金剛界; Pinyin: Jīngāngjiè; Romaji: Kongōkai) is a metaphysical space inhabited by the Five Tathagatas. The Diamond Realm Mandala is based on an esoteric Buddhist sutra called the Vajrasekhara Sutra. In traditional Tangmi and Shingon halls, the Diamond Realm Mandala is hung on the west wall symbolizing the final realization of Mahāvairocana Buddha. In this setting, the Womb Realm Mandala is hung on the east wall, symbolizing the young stage of Mahāvairocana Buddha.