In Panosophy, Tantra is one of many ways of representing the fundamental design principle of the Universe: the Principle of Unity, the Ultimate Integral Yoga, providing the Cosmic Context for all our lives together, as Satchitānanda ‘Bliss of Absolute Truth and Consciousness’.
This is a natural generalization of tantra, which derives from an instrument for weaving the orthogonal opposites of warp and weft together in a loom.
Historically, tantra refers to spiritual practices that are based on groups of texts for seekers searching for Wholeness, in union with the Divine, from which we are never separate.
In recent years, the primary focus of tantra in the West has been divine lovemaking between woman and man, sometimes missing the central point of impersonal, nonegoic Wholeness, when two beings blissfully merge and melt into each other in Stillness, with no separation between them.
Sanskrit ‘loom, warp, weft; system, framework; doctrine, principle, theory; context, continuum’, from tan ‘to stretch, extend’, from PIE base *ten- ‘to stretch’, and -tra ‘instrument’, from PIE base *-trom ‘instrument, tool’. So tantra literally means ‘an instrument for stretching’, unifying the opposites of warp and weft.