Vajra recitation is the practice of linking mantra recitation with movements of the breath. This often involves linking the inhalation, resting, and exhalation of the breath with the mental recitation of the seed syllables OM AH HUM, while simultaneously holding the vase breath.
- Yon tan rin po che'i mdzod kyi 'grel pa zab don snang byed nyi ma'i 'od zer. Yon tan rgya mtsho. Quoted in the glossary of Deity, Mantra and Wisdom, translated by Dharmachakra Ttranslation Committeee.