To understand esoteric healing, we must first understand the concept of soul and spirit. I believe that our own essence is the soul, yearning to express itself through our body, with the help of our spirit, emotions and mind. But, when we become traumatised in ways of terror, we don't dare to fully inhabit our bodies, and even leave in part. These soul-parts are what we can retrieve, with the assistance by others. However, nobody can retrieve it for you, only you yourself, can call it back in, by making your body safe enough and cared for. This is why Hawaiian Lomilomi massage helped me to, together with self-care, and their forgiveness process called Ho'oponopono.
The soul is ether, a substance of sacred magnitude, enabling us to live with another perspective than that of the Ego. The soul is looking outwardly, feeling connected, while our Ego is looking inwardly, feeling separated. However, we need the Ego to interact and protect ourselves.
The spirit is that which connect us all, the lifegiving spark, enabling us to feel oneness, emerging through our emotions, that also can be understood in the division and unity of the natural elements.
You can read more about this here.