By any chance, was the teacher you refer to Anodea Judith - ? Interesting reflection on the subtle body map... key here, I think, is the fact that any body map (even an anatomical one) is not the embodied experience. The map is not the terrain. We embody a mystery... but those road maps can be helpful in attempting to understand something of this mystery...
One of my favorite teachers is Gil Hedley who says "models are meant to be useful-not real" I think of that often in both the western anatomical model of muscle and bone as well as the energetic maps of chakras and nadis
"I know it in my bones," "I feel to the core of my being,"" I feel it in my gut"...that and similar expressions in other languages I have encountered anecdotally, affirm this universal experience of living in these (meat or meet suits?); that there is knowledge beyond cogitation - a wisdom of the body. Vitality and confidence is lost and gained to the degree that we encourage faith in this wisdom, which is one of the reasons teaching yoga responds to tikkun olam, (heal the world). We are holding space for people to connect with that wisdom. Your poetry is very inspiring to me in this regard.