Mahalaya: Invoking the Mother Goddess Mahalaya is an auspicious occasion observed seven days before the Durga Puja, and heralds the advent of Durga, the goddess of supreme power. It is an invocation and invitation to the mother goddess to rise, awake and descend on earth and annihilate the evils of the world by her Supreme Goodness - Jago Tumi Jago, Jago Durga...This is done through the chanting of mantras and shlokas and singing devotional songs. The day of Mahalaya ushers in the aura of Durga Puja. https://www.boloji.com/articles/662/mahalaya-invoking-the-mother-goddess