She wears a garland of human heads, variously enumerated at 108 (an auspicious number in Hinduism and the amount of countable beads on a japa mala or rosary for repetition of mantras) or fifty one, which represents Varnamala or even the Garland of letters of your Sanskrit alphabet, Devanagari. This https://gregoryrlgzs.blogdon.net/facts-about-kali-revealed-44182565