Thus, Bindu is representative of two opposing concepts – one a ‘hole’ in which all vibrations vanish, and the other a ‘bright spark’ that emanates energy. And this vibrating Bindu is the Spanda of the Shiv-sūtras of the Āgamas. Spanda literally means a ‘throb’, a pulsation of energy that spawns all creation. It is a concentrated microcosmic unit that unfolds to reveal all dimensions.
By the way, Mishraji explains that, the Āgama is generally mistranslated by scholars as ‘testimony or competent evidence’. Āgama is more. It is actually the “cognitive process that, this true testimony, produces in the person receiving it”. It is the very act of understanding in the receiver’s mind, like the Sphota of Bhartrihari. Therefore, Mishraji concludes that even though Bindu is throbbing “it is neither a unit of time like kshana nor a space unit like the atom or Anu. Rather, it is a unit of consciousness, which at the same time, becomes the body of the material world.”
These words remind me of the idea of “point of choice” in the path breaking paper in Quantum Mechanics (QM) by Hugh Everett III who in 1957, as a 19 year old graduate student of Princeton University, came up with “The Many World Theory”. This was to resolve the ‘Wave & Particle’ duality that is inherent in QM experiments at the sub-atomic level. At this level in QM, matter does not have a discrete nature – it remains in the realm of probabilistic wave energy emerging in the real world as a particle only when a conscious observer ‘looks’ at it.