Do We Understand Our Biological Selves?

The question of understanding our 'biological selves' is quite intriguing. What does it mean exactly, 'a biological self'? Physically: the cells, tissues, organs... Or, the intricate and energetic components to the body that enhance and manifest physical imbalance? At first it seems an easy question to answer. I feel I do understand myself, biologically. I know my anatomy, and to some degree I could explain cell components... (not very well, unfortunately, the parts are all so tiny...) However, the process of understanding how the biology of a system can create, destroy, manage, manifest, and heal a myriad of illnesses- is a mystery. But it is a mystery I am willing to explore. When certain physical maladies affect my body, I can almost always relate it to an emotional, situational, relational STRESS. (I put that in caps, because stress is an overwhelming, bullying component to life). But when I meditate and go into my body, my cells, my tissues and sit in it and see what is going on, I can begin to heal it. The process of healing can be difficult, but there's is peace for me in knowing I can simply go within, and see what I find- in the biological, cell level aspect. At least I have that, and know that.