Deepak is just talking about hindu/vedic high philosophies- that is consciousness philosophy. He says just observe the observer or your true self but there is a way to be in sync with our true self or consciousness. Consciousness is also the basis for karma and reincarnation. Hinduism's ageless Sankhya philosophy which says that observed (matter) cannot be perceived without the observer (consciousness). It is well validated by Double slit quantum experiment. How to reach the fourth state of consciousness with hindu-divine language of India- (Sanskrit) is also well validated by science.
Sanskrit "OM" is present in hindu/ Vedas. Nobody can deny that. The reason why one should not de-link Sanskrit OM from Yoga is only Hindu/vedic Sanskrit "OM" with 7.83 Hz vibratory frequency can take you to the final frontier of matter. Beyond it is (fourth state of consciousness or pure consciousness or divine). Pure consciousness cannot be measured. Allah, Amen or ShalOM DON'T HAVE the same vibratory frequency like Hindu/vedic Sanskrit OM. It is well validated by science. Ever heard of Schumann resonance? Resonances of earth, ie, 7.83, 14, 20, 26, 33, 39 and 45 Hertz of earth. 7.83 hz being the strongest of all, OM or Schumann frequency.
HINDU/VEDIC SANSKRIT MANTRAS WITH FREQUENCIES AND RESONANCES SIMILAR TO MATTER
Ohm- 7.83 Hz
Gam - 14 Hz
Hleem - 20 Hz
Hreem - 26 Hz
Kleem - 33 Hz
Krowm - 39 Hz
Sreem - 45 Hz
It is the reason why Hindu language Sanskrit (from India) is a divine language. It is also the mother of all languages
eg Famous German airliner Lufthansa is nothing but combination of sanskrit words Lupt and Hansa meaning "a rare bird to see". Scandinavia is also combination of sanskrit words "Skanda (son of hindu god shiva) and Navia (naval settlement). The word navigation is also derived from the Sanskrit word (Naviga). Modern Europeans are descendants of hindu/vedic people from India who migrated to other parts of the world (including Europe) before 4000 BC. It also means there was NO white people before 3000 BC. White is NOT a race. Food habits (which lacked vit D) and natural selection (due to low sunlight-especially in Scandinavian countries) led to whitening of skin in 1000 yrs. As far as blue and green eyes are concerned, it is not restricted to Europe. We also see middle eastern and african children with blue and green eyes. (due to genetic mutation of OCA2 gene in the eyes due to particular food habits) (sorry for digressing)
Hinduism's Rig Veda (aka quantum physics) - the oldest library of knowledge and wisdom in the world has the complete blue print of the universe. Rig Veda's sanskrit hymns and mantras, when recited (in hindu temples) has the same vibratory frequencies of sub atomic particles (bosons and fermions). Quantum physicists acknowledge that hinduism's veda is way more advanced than modern science since so far few sub-atomic particles have been discovered.