Trailokya (Sanskrit: त्रैलोक्य; Pali: tiloka, Wylie: khams gsum) has been translated as "three worlds," "three spheres," "three planes of existence," "three realms" and "three regions." These three worlds are identified in Hinduism and appear in early Buddhist texts.
In Buddhism, the three worlds refer the following destinations for karmic rebirth:
According to Helena Blavatsky's posthumously published Theosophical Glossary (1892):
Trailokya is also a Hindu Surname, mostly belonging to the Daivadnya Brahmin, a Hindu Brahmin sub-caste.