A portal is defined by it's emptiness. To pass through a portal is to move through emptiness. From Non-being into being, nothingness into thing-ness, from forgetfulness into remembering.
The Sacred Feminine is how we all have come to exist - There is no balance without such power!
These LS T's also hold the staff of Shiva in Unalome form , one on each sleeve.. A nod to the unification of opposites and creative principle that is active when they are combined.