Vision (spirituality) - Wikipedia

The Book of Vision - Wikipedia

Idk if this is common knowledge but Monk Gyatso and Kelsang (Kyoshi's mentor) were both named after this real life monk. : r/TheLastAirbender

Tree of life vision - Wikipedia

Mahayana - Wikipedia

Merkabah mysticism - Wikipedia

Saint Bridget of Sweden, Religious - My Catholic Life!

Near-death experiences have long inspired afterlife beliefs

Who Was Vivekananda, the Indian Guru Who Brought Eastern Spirituality to the West?, History

The Vision and the Voice - Wikipedia

What is a spiritual exercise?. A handy guide to the theory and…, by Philosophy as a Way of Life

Hell - Wikipedia