What we tell ourselves DOES really matter! Self talk is not a new age thing.
Science is catching up with the Bible!
What you think, your body will bring about. If you feel guilty, you will be sick because on a cellular level your body picks up on those thoughts and brings it about. If your guilty then you must be punished, so the cells react to those thoughts.
Scripture says “What so ever is pure, wholesome, etc. think on these things”.
God was the author of positive thinking, LONG before the new agers came along.
Eph. 4:8