Koshas are layers or sheaths that help us to move from the physical to the spiritual. There’s that moment at the end of an intense physical and mental practice, it could be running, yoga or chasing your nephews around a park for two hours, where you feel absolutely blissed out and serene. Have you felt that before? While your mind was focused and your physical body was working you managed to move yourself into a state of peace. According to yoga philosophy you have moved through the layers of the Koshas. Much like layers of an onion, the peeling of these layers helps us navigate to the core of who we really are.