Sapphic Fire.
She is the source of your pulse found outside of your skin. She is the perfect eye of a hurricane with a maelstrom all around it. Internal hormonal warfare leaves you breathless, electric, hopeless, in turns. You lay awake, your heart pounding, your mind's eye manifesting Her - your brain has spent so long seeing Her and wanting Her that it has made you a handy backup hologram. Neat.