Maybe the spiral represents a portal. The chakras can be thought of a portals for spiritual energy, derived from source (God).
The heart chakra is a portal for the human soul, if it's not used as a portal for the human soul, what might be the substitute? Perhaps what the Gnostics referred to as "Archons" (Lords).
The Gnostics believed in non-physical entities of a demonic nature called Archons, similar conceptually to C.S. Lewis' Screwtape & Wormwood etc.
Know what the heart chakra symbol is?
Sorta looks like the Seal of Solomon, utilized in summoning spirits and daemons.
Coincedence?