Everything is there within Awareness.
tatra niratiśayaṃ sarva-jña-bījam
“There the source of all knowing is unsurpassed.”
Yoga Sūtra Chapter One verse 25
Firstly we need to ‘as if’ dedicate our actions towards Awareness.
tat-artha eva-dṛśyasya-ātmā
“That purpose of the seen is indeed for our essence.”
Yoga Sūtra Chapter Two verse 21
For that we need to to re-focus Asmitā from Asmitā Kleśa:
dṛg-darśana-śaktyoḥ-eka-ātmatā-iva-asmitā
“The sense of ‘I’ am-ness is when the powers of the seer and what is seen are as if one essence.”
Yoga Sūtra Chapter Two verse 6
Towards Asmitā Jñāna
vitarka-vicāra-ānanda-asmitā-rūpa-anugamāt-saṃprajñātaḥ
“Total insight follows the form of profound reasoning,
profound reflection, joy and the sense of ‘I’ am-ness.”
Yoga Sūtra Chapter One verse 17
Question:
I feel reflecting on the 
I was taught a lot about Prāṇāyāma through my 121′s with……
I was taught a lot about Prāṇāyāma through my 121′s with Desikachar from 1979 to 2002.
These practices, unique to Yoga, were integrated right from my first lesson in Madras.
In its learning infancy as a consistent practice, it was taught as a skilful means, as an essential part of the preparation for Dhyānam, through affecting the Citta Guṇa.
Some decades later in its experiential maturity, I find it a skilful means for a re-union with and extension of Dhyānam.