"Lotuses in Hinduism symbolize prosperity, beauty, fertility, eternity and eternal youth." This is a very pretty flower, so it's symbolization fits it. I love the way it stands out! White lotus for mandala.
"O Radharani, the queen of Vrndavana, with the medicine of the red lac from Your lotus feet, please bring back to life this person now dead from the bites of the black snake of not seeing You." (Vilapa-kusmanjali by RDG)