Anomalous spiritual experiences can be both true and false, requiring differentiation. True spiritual experiences involve experiencing eternal happiness or bliss and are verified through criteria like being repeatable and causing positive life changes. False experiences may be pathological and require treatment. Spiritual experiences have been studied scientifically through fields like neurotheology, which examines brain regions involved, and transpersonal psychology, which studies transcendent experiences. Vedanta philosophy defines spiritual experience as experiencing the eternal reality or bliss of Brahman and provides methods like yoga and association with holy men to enhance experiences of the supernatural. Both science and Vedanta point to a combination of approaches involving psychiatry, psychology and philosophy to understand the nature and occurrence of anomalous spiritual experiences.