“Egyptian myth tells us that the primeval blue lotus was the first thing that arose from the primordial abyss.
Because of this, the sacred blue lotus (technically a water lily) was a symbol of regeneration. The flower’s blue-purple petals opened each morning to reveal a golden center, like the sun rising each day.
Blue lotuses were given as offerings to the Goddesses and Gods, not only for their beauty and as symbols of rebirth, but also for their association with purity.
As a Goddess Whose quintessential power is rebirth and regeneration, Isis is closely connected with the beautiful blue lotus. In fact, there are several surviving statues that show the head of the Goddess emerging from the center of the primordial lotus. The lotus often appears as part of Isis’ headdress, particularly in later periods. By the time the worship of Isis expanded beyond the borders of Egypt, the lotus flower of Egypt came to be almost exclusively associated with Isis.”
https://isiopolis.com/2012/11/10/blue-lotus-isis-magic-trailer/