I have always been taught that in Pranayama the lungs are filled with air “as a jug” from the bottom to the top and emptied in the same way - that is, starting with the diaphragm and ending with the top of the lungs.That is indeed what most authors recommend and I assume it applies to all kinds of Pranayama.
Inhale-belly,chest,slight lift of collar bones (to expand w any last air)
However, I recently happened to read in Iyengar’s “Light on Pranayama” something which sounds as exactly the opposite advice: “In exhalation the source or the starting point is the top of the chest…” He is not being more specific about that and I am confused and worried. Have I been doing something as basic as this wrongly all along.
On the exhale-go–> in reverse.
This completes one full yogic breath.
Here is a site you might find helpful covering variouspranayama.
it is hard to give responsible remarks for this kiind of thing over internet.
as i have said your 1st paragraph sounds like inhalation,your second exhalation.so the
'emptied in the same way’
might be erronoeus though i suspect you might read,hear about all different kinds of pranayama.(different schools might even state different things which is why folk suggest teacher, one consideration being it would appear to reduce conflict if one way of doing things is practiced)
that said it would’nt let it freak you out completely or dissuade- you have to take some responsiblity for your own practice.and devlop the wisdom to discern wht is serving you and what maybe is’nt.
hope this might help.
as a final word- iw ould say just be relaxed about your practices- don’t strain anything,your thoughts or your mind. i personally aspire towards a slow,relaxed and moderately full deep breath.i think it’s about tuning into your prana and it is realy something might take some time to cultivate an awareness of, the ancient texts speak of…obviously doing asana semi-regularly should help in this regard,if you do,can do that.
best of luck!