Prasthanatrayi (,
IAST: ), literally,
three sources, refers to the three canonical texts of
Hindu philosophy, especially of the
Vedanta schools. It consists of:
- The Upanishads, known as Upadesha prasthana (injunctive texts), and the Sruti prasthana (the starting point of revelation)
- The Brahma Sutras, known as Nyaya prasthana or Yukti prasthana (logical text)
- The Bhagavad Gita, known as Sadhana prasthana (practical text), and the Smriti prasthana (the starting point of remembered tradition)
The
Upanishads consist of twelve or thirteen
major texts, with a total of 108 texts. The is part of the .The (also known as the ), systematize the doctrines taught in the Upanishads and the .