Thank you Bernie for this answer and the link to Cathy Keenan, I didn't know her. I will read her articles for sure!
You are right : setting a practice based on the date of the calendar seems silly for a personnal practice, but I thought it could be a nice theme for a class. I never know what my students really need emotionnally, so is it pointless to even try to have meridians based themes during a class?
If I come back to a Summer Solstice theme class anyway, would you think that saying something like this could be a good idea :
" take child's pose for a few breaths (1 or 2 minutes I would count) , now if you need more cooling effect to balance the summer, continue to enjoy this pose, but if you do need the burning fire from the summer because you feel your heart is weak right now, and need an extra spark, go into Anahastasana for the remaining 2 - 2 1/2 minutes" .
That way, I could built a sequence with that theme, offering 2 poses at 2 or 3 different occasion, so that even in a group class someone could "customize" the sequence.
That brings me to something else...
I remember that you said that a difference between Yin Yoga and Restorative Yoga was that in Yin, we don't pretend to heal the body. We take a healthy body and try to improve the mobility and the strenght of the joints, yin tissues ... Can we say that this difference is true for the physical benefits of Yin, but not for the energetic, emotional and mental level as we try to balance the chi, and heal some troubles on an energetic level?
Thanks again, I really appreciate this forum as it gives us a chance to continue to pick your amazing brain!
Catherine