Learning is definitely fun. Many discoveries thrill you.
It is not necessarily something new to you. You may have known it, but you were just not so aware of it.
I used to use legs to bring them up for inversion poses. I was not using my core, especially around my ribs. I started to be more aware of my ribs (which had always been quiet and low-key to me.)
At Pincha Mayurasana, it was eye-opening for me to think of opening my chest vertically as bringing my legs up. (I think I was unconsciously engaging my chest all the time to keep my forearms and elbows stable on the mat.)
Bring awareness, bring a breakthrough.
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