It almost looks like a halo of spikes," he said. "The sun crown isn't just a Christian symbol," Emily said. "In many cultures as far back as ancient Egyptian, and including Roman and Christian, crown of thorns and halo both derive from the tradition that identifies every newly-crowned king with the sun. The halo nimbus represents the rays of the rising sun. It's a sign that its wearer plays the life-giving role of the sun in his subjects' existence. The Greek sun god Apollo was driving his chariot across the heavens wearing the sun crown when Rome was just a huddle of huts.
The headdresses of the Egyptians have great symbolic and emblematic importance, for they represent the auric bodies of the superhuman intelligences, and are used in the same way that the nimbus, halo, and aureole are used in Christian religious art. — Manly Hall
Hymenocallis littoralis or the beach spider lily is a plant species of the genus Hymenocallis, native to warmer coastal regions of Latin America and widely cultivated and naturalized in many tropical countries. Wikipedia
