From a psychological perspective, our character and persona are made up of our Ego, Self, and our Shadow. Our soul is defined by the integration of all these aspects within.
Shifting from Self to Soul is where you move from your Ego based consciousness and the conditions at which you live by, towards a Soul-based consciousness where you have integrated all aspects within yourself. This is in essence where you are living in alignment with your True Self.
You are in essence moving away from Ego conditions that no longer serve you to live by what drives your unconscious Self (your unconscious drivers, motivations, and beliefs). You are also allowing Shadow aspects to come to the surface to be healed. Your Shadow relates to your suppressed emotions and feelings that form your Fears, Doubts and Limiting Beliefs about yourself.
Your Soul Pathway is one of coming into alignment with who you are and all aspects of yourself, to connect with your Soul.
Have an Amazing Day Everyone of Embracing your True Soul Essence!