Gregg Braden, in his illustrated interview 'Miracles of Healing', gives evidence of how our feelings can change our physical bodies and the world around us.
He says "We must feel the feeling as if the prayer has already been answered, and in that feeling, we are speaking to the forces of creation, allowing the world to respond to us." "The words aren't the prayer - it's the feeling behind the prayer that gets the results." If we pray for peace we can feel as if we are participating in that peace. "As we feel the peace in our world or the healing in the bodies of our loved ones, we are actually empowering the field of energy (or God) to mirror that back to us in a way that will bring those changes about in our lives and in our world."
He goes on to give evidence of healing and peace brought about by the collective feeling, believing or knowing of the immaculate concept.