Different Types of Postural Activity in Āsana Practice

8. Furthermore, the consideration of the roles of
movement and stasis can be further developed through
Krishnamacharya’s teachings on application of Āsana.
For example, whether for circulation or for purification,
within both structural and/or systemic roles for Āsana.
Regarding circulation, or what he called Rakta Calana.
When you want to activate the circulation you move.
Regarding cleansing, or what he called Śarīra Śodhana.
When you want to activate a purificatory process you stay.
Both presume there is competent access to the breath,
working access to the concepts of Prāna, Apāna and Agni,
and experience of how to direct the breath in the spine.

Āsana Mudrā & Prāṇāyāma
– Collected Viniyoga of Practice Planning Principles

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