Ratri Suktam (Durga saptashati) Durga mantra

The Ratri Suktam is from Rig Veda - it is possibly the first hymn or prayer to the eternal Divine Mother Kali revealed in the Vedas for the benefit of all mankind. Darkness of the night is symbolic of ignorance but it also heralds the break of dawn.

The word ratri-night is derived from the root 'ra' which means 'to give' implying that Mother is the giver of bliss, of peace of happiness.
Ratri Suktam (Vedic) - Ratri Suktam (8 Slokas) has been taken from Rig Veda, 10th Mandala, 10th Anuvaka, 127 th Sukta,which shows that Devi was worshipped from time immemorial