The blood of Christ is not a fluid spilled once in history but the life-force of the awakened self circulating within the body, the vital current that carries the higher energy through the flesh. Christ is the anointed awareness inside the person, and its offering without spot is the pure surrender of the lower self to the light, an act carried out through the eternal Spirit that never dies. To purge the conscience from dead works is to cleanse the inner awareness of the mechanical, lifeless habits of the flesh, the deadened routines the body runs without spirit. The living God is the awareness fully awake within, the vitality at the crown that these cleansed faculties are freed to serve. So the passage maps an inner purification, the vital current washing the mind clean of its dead automatic motions.
What religion reads as a sacrifice paid to satisfy heaven is the inward work of a person's own awakened life-force clearing out the deadwood of habit, so that attention, no longer running on empty routine, can attend the living awareness inside.
Blood: the life-force of the awakened self, the vital current carrying the higher energy through the flesh
Dead works: the mechanical lifeless habits of the body, the deadened routines the flesh runs without any spirit in them