Navagraha Mantra — The Nine Planetary Sounds
The nine planetary mantras of Tantric astrology correspond to the nine grahas (planets/cosmic forces) that influence human experience, offering a system for harmonizing with cosmic energies through sound.
Vedic astrology (Jyotish) and Tantra intersect in the science of Navagraha mantras — the nine planetary sounds used to harmonize with the cosmic forces represented by the nine planets (grahas). The nine grahas and their bija mantras: Surya/Sun (OM HRAM), Chandra/Moon (OM SHRAM), Mangal/Mars (OM KRAM), Budha/Mercury (OM BRAM), Guru/Jupiter (OM GRAM), Shukra/Venus (OM DRUM), Shani/Saturn (OM PRAM), Rahu (OM BHRAM), and Ketu (OM STRAM). Tantric planetary therapy works through these mantras combined with gemstones, colors, and ritual to strengthen benefic planetary influences and mitigate malefic ones. The philosophical basis is the Tantric understanding that the cosmos is a single integrated system of consciousness: what appears as 'external' planetary forces are actually aspects of the practitioner's own consciousness, and the mantras work by harmonizing the inner with the outer.
The nine planets are the nine aspects of the cosmic mind — their mantras bring harmony between the inner and the outer universe.
The Navagraha mantras address the nine 'graha' of Jyotisha — the seven visible bodies plus the lunar nodes Rahu and Ketu — each with its own bija, as catalogued in classical texts such as the Brihat Parasara Hora Shastra.
Brihat Parasara Hora Shastra