The word “submersed” is a botanical term that refers to plants that grow entirely underwater.  “Submersive,” then, means having the nature of being entirely underwater.

Water is often used as a metaphor for consciousness or emotional energy.  This aqueous world represents the unconscious mind (below the surface of the water) and the conscious mind, rising from the darkness into the light of awareness.
This wise woman emerges from the sea, third eye emitting a blossoming column of light, spiraling within a vesica piscis.  In her hands she holds a glowing sphere within a bubble.  This mystic has brought unconscious material up from the depths of the mind and transformed it into the light of awareness.