The Sanskrit term Upaniṣad originally meant “connection” or “equivalence", but came to be understood as "sitting near a teacher," from upa "by" … 展开

Muktika canon: major and minor Upanishads
There are more than 200 known Upanishads, one of which, the Muktikā Upanishad, predates 1656 CE and contains a list of 108 canonical Upanishads, including … 展开

The Upanishads form one of the three main sources for all schools of Vedanta, together with the Bhagavad Gita and the Brahmasutras. … 展开

The Upanishads have been translated into various languages including Persian, Italian, Urdu, French, Latin, German, English, 展开

Authorship
The authorship of most Upanishads is unknown. Radhakrishnan states, "almost all the early literature of India was anonymous, we do not know the names of the authors of the Upanishads". The ancient Upanishads are … 展开

The central concern of all Upanishads is to discover the relations between ritual, cosmic realities (including gods), and the human body/person, postulating Ātman and Brahman as … 展开

Several scholars have recognised parallels between the philosophy of Pythagoras and Plato and that of the Upanishads, including their ideas on sources of knowledge, … 展开