You are presuming when working with Prāṇāyāma
that the student has already put three things in place.
1. A physical possibility in terms of access to a steady seat.
2. An energetic possibility in terms of access to open channels.
3. A psychological possibility in terms of access to concentration.

Link to Series: 108 Prāṇāyāma Practice Pointers

Glossary of Āsana and Mudrā Practice Techniques
– Grouped into Standing, Kneeling, Lying,
Inverted, Backbend, Seated & Sitting Categories

Glossary of Prāṇāyāma & Bandha Practice Techniques
– Grouped into Primary, Secondary & Ancillary Techniques