Sien-Tchan (also spelled Sien-Tchang, Tsien-Tchan or Sien-chan) is a word found in the Stanzas of Dzyan said to come from the Chinese language. According to H. P. Blavatsky, the term refers to "our universe" and "the universe of form and matter."
David Reigle suggests that this term may be related to the Tibetan (sems-can, a sentient being). However, Jon Fergus proposes that this is the Chinese tiānxià (天下), which means "all that is under heaven" and philosophically/metaphysically signifies the manifested universe.
- The Orthography of Sien-Tchan by Ingmar de Boer
- Helena Petrovna Blavatsky, The Secret Doctrine vol. I, (Wheaton, IL: Theosophical Publishing House, 1993), 136.
- Helena Petrovna Blavatsky, The Theosophical Glossary (Krotona, CA: Theosophical Publishing House, 1973), 345.
- David Reigle, Blavatsky's Secret Books (San Diego, CA: Wizards Bookshelf, 1999), 64
- Personal communication on Jan 17, 2020.