Yajur Veda · Krishna Yajur Veda (Yoga Upanishad group) · 106 mantras
Dhyana Bindu Upanishad
Dhyāna-bindūpaniṣad
Central theme: The bindu (drop) at the heart of Om — meditation on the seed-point
A 106-mantra yoga-Upanishad teaching pranava-upasana and bindu-dhyana. Opens with the famous declaration: "Even if a mountain of sin as large as Meru extends for many leagues, it is destroyed by dhyana-yoga — no other means is known to break it." Lays out the six-anga yoga (asana, prana-samrodha, pratyahara, dharana, dhyana, samadhi), the AUM-tri-matra meditation with each matra mapped to a deity (Brahma-Vishnu-Rudra) and a guna (rajas-sattva-tamas), and the bindu as the half-matra (ardha-matra) above the M — the silent dot of the chandra-bindu where the meditator is absorbed. Closes with the lotus-of-the-heart visualisation and the nine chakras (extending the standard six with manas, soma and lalata).
Dhyana Bindu 1
यदि शैलसमं पापं विस्तीर्णं बहुयोजनम् । भिद्यते ध्यानयोगेन नान्यो भेदः कदाचन
Yadi śaila-samaṁ pāpaṁ vistīrṇaṁ bahu-yojanam, bhidyate dhyāna-yogena nānyo bhedaḥ kadācana
Even sin as vast as a mountain, extending many leagues, is shattered by dhyana-yoga — no other means is ever known.
Past the A, past the U, past the M — sit with the silent dot above the moon.