The entire Universe is reverberating. When there is reverberation, there is sound. In other words, the entire cosmos is simply a manifestation of sound energy. The ancient Vedic sages through penance, were able to download cosmic data directly. They received the cosmic truths in the form of sounds which they heard and envisioned. These truths were recited as received, and passed on generations after generations.
Introduction to Vedas
The Bija Mantra ( Seed Mantra ) refers to the one-syllabled sound which serves as the geometry to a deity. This sound is in some ways, literally the deity itself. Tantra is impossible without the use of bija mantras.
You would have received immunisation for Pertussis at a very young age. The vaccine comes as a combination of immunisation towards Diphtheria, Tetanus and Pertussis ( whooping cough, caused by Bordetella Pertussis ). Thus, the vaccine was referred to as the DTP vaccine.
This is the most interesting mantra I find encapsulated in the entirety of Shaiva Tantra.
