What is the significance of Maa Katyayani's worship on Day 6 of Navratri?

On the sixth day of Navratri, devotees worship Maa Katyayani, who's believed to be the most violent form of Maa Parvati. According to Hindu beliefs, she is associated with courage and victory over negativity, and worshipping her blesses devotees with harmony and marriage prospects. Wearing grey on this day is believed to symbolise grounded strength and balance.