The most well-known bija mantra is Om (or Aum), the sacred syllable that echoes the primordial sound of the universe. There are also bija mantras which correspond to each of the seven chakras. These mantras can be chanted while meditating on each of the chakras to help balance their energies. In yoga practice specifically, bija mantras can be chanted while performing poses that stimulate their respective chakras.
The mantras for each chakra are:
- Muladhara (Root) - LAM
- Svadisthana (Spleen or Sacral) - VAM
- Manipura (Solar Plexus) - RAM
- Anahata (Heart) - YAM
- Visuddha (Throat) - HAM
- Ajna (Third Eye) - U
- Sahasrara (Crown) - OM
It is said that using these bija mantras harmonizes the systems of the body and mind. As such, they may also be used in sound therapy.
Tibetan Buddhists also have bija mantras associated with the Three Vajras, sometimes called the Three Secrets. These are:
- Enlightened body - a white OM
- Enlightened speech - a red AH
- Enlightened mind - a blue HUM