The biblical tales were heavily influenced by other myths prevalent at the time (e.g. virgin birth). The biblical story of the Ark of the Covenant was inspired by the tale of the Benben stone.
The illumined serpent inside the Benben stone is the awakened Kundalini energy, the first subtle manifestation of the Divine Consciousness’s desire to appear many from one, which was mistaken as “evil” in the later biblical interpretation.
Not sure of the association of the Sekhmet with this stone, or its concept, but she has graced me with her presence a few times soon after I bought this one - popular tales do not really associate the Benben stone with Goddess Sekhmet, but this proves that the energy of the stone is strongly associated with Egyptian Deities, or something tells me, with even more ancient entities.
Last year, I received this message and this seems to be coming true… Energies lost in the annuls of time are coming back, when we need them to realize our own magnificence.