Gupt Navratri holds a terrific spiritual significance among Hindus and these 9 times are purely focused on worship Goddess Durga. Devotees worship her for consecutive nine very long days and 9 nights. Navratri falls 4 periods inside a calendar year when devotees get an opportunity to worship Maa Durga. https://www.youtube.com/watch?v=ufkmD95y7fE