Different parts of us have different perspectives, sensations, emotions, gifts, and strengths. Some of these parts may have gotten burdened in the past, especially childhood by shock trauma and attachment trauma.
In addition to Self unblending from parts, the healing and awakening process includes helping these parts to unburden from their pain and traumas.
The Disney/Pixar movie Inside Out is a good introduction to Parts (though it did not use or portray Self. You may want to see this if you haven’t already. A delightful film!
Richard Schwartz and Eric Sjoberg