The heart of yoga practice is encapsulated in the question, "Who Am I". If you consider yourself a serious practitioner, you must dedicatedly and passionately pursue this question to its ultimate conclusion. You must discover fully and for yourself through direct experience the deepest essence of who you really are.
The common person's belief is that who we each are is contained almost entirely in this container of skin and blood and bone. The belief is that everything inside of that container is who we are, distinct and separate from everything outside of this container. It is often so ingrained as a belief that very few people even consider to question this assumption.
Again, if you are person of serious spiritual intent, you must delve into this assumption with your entire body, mind and heart. You must discover the validity or emptiness of this idea about who we think we are.
Most all of the great spiritual texts inform us that this idea of each of us being separate and distinct from each other and everything else is surely deluded, a genuine kind of madness. Even modern science is arriving more and more each day to the conclusion that there is very little in each of us that is actually separate from the basic reality that we live in. In fact, there is much more evidence pointing to the fact that the basic elements that we are composed of, both gross and subtle, are deeply and seamlessly connected.
If this is actually true, than we must completely rethink and reorganize how we see ourselves and move in the world.
If you look into your own beliefs about yourself, you will be surprised by just how much we treat ourselves as separate and distinct entities. How our whole world view is organized around this particular belief. The further this particular assumption is examined, you will find out just how much of our current state of chaos and unhappiness in the world is related to this particular world view.
Do not underestimate just how much power can be experienced by reflecting deeply on this particular question. In the light of this, make as much room as possible in your life for this kind of reflection and contemplation. The continued and regular engagement with this question will change your life in the most remarkable ways.
OM Namah Shivaya...!!!