The One Who Doesn't Trust Me

Even though I am loving creating this safe inner hearth for my Self, I sense that some parts of me are saying “Not so fast!” I feel the resistance in my neck.  It is stiff, knotted, and relentlessly reminding me that I am not so comfortable. Is there anger in there?  You bethca.  I think it is coming from the part of me I call, “my reptilian brain”.  She protects me from being vulnerable, open, and loving toward anyone, including and especially my Self.  She is all about survival and safety.  She says:  “I am one who guards you against any feelings of “softness” or “warmth”.  I am here to keep you strong, stoic, and on alert.  You willl not survive if you allow your self to relax into a goopy state of lethargy. You must be ready for fight or flight at a moment’s notice. ”  I don’t like this idea of becoming “comfortable” with your body.  You must maintain discipline and awareness of all that goes on outside of you.  What your body needs is protection on the outside, and toughness on the inside.
Whew! She is tough, and will not just “go away”.  How can I help her get on board with my quest?