Sinist theology contains a triune idea of God in the myth of Dangun, the third form of Hwanin. With Dangun as Sansin, the godly trinity of the Korean religion represents three generations of Haneullim, the Heavenly King. Hwanin represents the transcendent source, with "haneul", "hwan" indicating "being" or the "Heaven", and "im", "in" the cause of it. Hwanung, second form of Hwanin, is the god of the middle realm; he occupies the central realm between Heaven and Earth.
Dangun, the "Sandalwood King", is the god of the Earth. As Sansin, the "God of the Mountain", he represents the center of the cosmos reaching up to Heaven. Where the heavenly princely lineage was incarnated, the "cosmic mountain" was formed, and the sandalwood became the "holy tree", all aspects fundamental to the shamanic experiences as Mircea Eliade highlights. The concept is also explained in terms of Hwanin the God-Father creator of the universe, Hwanung the God-Teacher or the order of nature, and Dangun the God-King, the human king who directs the kingdom according to the natural order, making well-being.
The Christian doctrine of the Trinity (Latin: Trinitas, lit. 'triad', from trinus, "threefold") holds that God is three consubstantial persons or hypostases — the Father, the Son (Jesus Christ), and the Holy Spirit—as "one God in three Divine Persons". The three persons are distinct, yet are one "substance, essence or nature" (homoousios). In this context, a "nature" is what one is, whereas a "person" is who one is.
Hinduism believes in a trinity of gods: Brahma (the creator), Vishnu (the preserver), and Shiva (the destroyer).