Advaya Taraka Upanishad a minor Upanishad that describes the practice of yoga culminating in the realization of non-dual Brahman. Advaya Taraka Upanishad belongs to Shukla Yajurveda. This Upanishad addresses itself to one who after having performed the duties pertaining to his station and stage of life like that of a householder, who having received instruction in the scriptures from a preceptor and reflected on the truth so imparted, contemplates on it without hindrance. Such a person is in complete control of his sense organs and mind, is dispassionate and detached from worldly interests and has an intense thirst for release. The method prescribed in Upanishad for attainment of this realization is called taraka yoga or method of transcending the bondage to worldly interests.
This method consists of continuous meditation on the truth.
By this Yoga, one realizes one’s true nature as Brahman. This yoga is said to be of two kinds taraka (taking across) and amanska (mindlessness). With his eyes and mind turned inward, the yogi experiences , in the first instance, the truth introspectively as the light in the middle of the eye brows. And eventually all differentiations are dissolved in the integral spiritual experience.
Upanishad concludes with a description of mudras and of the preceptor who guides the practitioner to success.