A goddess I work with a lot is Chinnamasta:
She sacrifices herself to herself. She is the sacrificer, the sacrifice and the recipient of the sacrifice. She reveals the interrelationship of sex, death and life. She is the wisdom that gives itself freely during sexual gnosis.
Either side of her stand her two attendants, the single gnosis the the multiple gnosis, who feed from the blood that pours forth from her severed neck, as does the severed head of Chinnamasta herself.
Amongst other meanings, the three streams of blood relate to the Tantric nadi, Ida and Pingala either side and the channel of the Kundalini serpent in the centre. Her severed head represents the silencing of thought and the focus of consciousness and awareness in the body.