The tormenting swarm cannot touch what is green and living in a person, only what has no mark of awareness at the brow. Grass and every green thing and the tree are the growing life of the body, the sap that still rises, and these are spared. What is stung is the mind that carries no seal in the forehead, the person living entirely in surface thought with the inner eye shut. The seal of God in the forehead is that single center of higher sight awakened at the brow, and where it is lit the plague of restless torment finds nothing to bite. The tree in particular is the spine and nervous system standing upright through the body, the trunk of life that stays untouched. The living force of a person is safe wherever inner sight has been lit, and only the mind trapped in surface thought is left open to the sting.
Seal of God in the foreheads: the single center of higher awareness awakened at the brow, the mark that protects a person from the sting of aimless mental torment.
Grass and green thing: the fresh living force of the body, the sap and vitality that keep rising through a person.
Tree: the spine and nerve column standing upright through the body, the trunk of life left unharmed.