satori
Satori (noun) means a sudden feeling of deep spiritual understanding, often reached through meditation.
Etymology
Borrowed from Japanese 悟り (satori, “understanding; (Buddhism) enlightenment, satori”), from 悟る (satoru, “to perceive; to comprehend, understand; to come to enlightenment”), from Middle Chinese 悟 (nguH, “to become aware, apprehend, realize; to awaken”) (modern Mandarin 悟 (wù)), which was used to translate the Pali term bodhi (“supreme knowledge”) or its source Sanskrit बोधि (bodhi, “perfect knowledge or wisdom by which a person becomes a buddha or jina; enlightened or illuminated intellect of a Buddha or jina”). The sense under Etymology 1, sense 3 (“mutant gene of Drosophila that causes homosexual behaviour in males”) was coined by the Japanese scientist Daisuke Yamamoto in a 1991 paper, based on this Japanese term.