What is "samyama"

Samyama (from Sanskrit संयम saṃ-yama—holding together, tying up, binding, integration). Combined simultaneous practice of Dhāraṇā (concentration), Dhyāna (meditation) & Samādhi (union). A tool to receive deeper knowledge of qualities of the object. It is a term summarizing the "catch-all" process of psychological absorption in the object of meditation.

Samyama, as Patanjali's Yoga Sutras states, engenders prajñā. Adi Yoga or Mahasandhi discusses the ' mūla prajñā' of "listening/studying, investigation/contemplation, realization/meditation" which are a transposition of the triune of Samyama. These are activated subconsciously in non-structured form (thus producing fragmented spontaneous Samyama-like effects) by any thinking activity or contemplative absorption (particularly the Catuskoti and Koan) and deep levels of trance. Any kind of intuitive thinking at its various stages of expression is strongly related to Samyama-like phenomena as well.

Samyama is practiced consistently by Yogin of certain schools ( Raja Yoga, Adi Yoga e.g.). Described in Yoga Sutras of Patanjali, it comprises the three upper limbs of Raja Yoga. Following Patanjali's Yoga Sutras, a yogin who is victorious in samyama vanquishes all 'cognitive obscurations' (Sanskrit: klesha). The Sutras describe various 'powers' or 'perfections' (Sanskrit: siddhi) a yogin may attain through the conduit of Samyama.