The vampire lives on borrowed vitality — the figure who drains others to sustain itself and cannot enter uninvited. Dream-vampires name the energy-drains of a life: the person, habit, or pattern feeding on your life-force with your unwitting invitation.
Positive Resonance
The drain identified, the invitation revocable, thresholds guarded
Shadow Aspect
Vitality siphoned nightly, the drain charming its way in, becoming what fed on you
Nuances
Being bitten: the drain attached
Inviting the vampire in: the drain admitted by you