Svādhyāya is a Sanskrit term which means self-study and especially the recitation of the Vedas and other sacred texts. It is also a broader concept with several meanings. In various schools of Hinduism, Svadhyaya is a Niyama connoting introspection and "study of self".

The Taittirīya Upanishad is a Vedic era Sanskrit text, embedded as three chapters (adhyāya) of the Yajurveda. It is a mukhya Upanishad, and likely composed about 6th century BC.