A third factor, that of Respect for Responses

6. Āsana are not automatic but can become so.
The inevitability of voluntary actions is that we
get used to them and they become involuntary.
With this, the risk factor is increased as well.
So what is voluntary and what is involuntary is
completely different when there is a ‘new’ response.

However, such a response needs to be linked to
something deeper than just merely a ‘tweaking’,
or ‘inventive’ variation within the form of the body.

Given, that in Yoga the breath is that which gives life.
By cultivating a role for, and the purpose of the breath,
we are creating and re-creating a situation for, not just new,
but also more subtle responses to occur and reoccur.

Within this field for enhancing awareness,
through our relationship with the breath,
the risk factor is reduced as well.

Āsana Mudrā & Prāṇāyāma
– Collected Viniyoga of Practice Planning Principles

Āsana Mudrā & Prāṇāyāma
– Collected Practice Planning and Practice Theory Questions