Possible Clues:

• Ra, e.g.
• The Greeks' Helios, e.g.
• Maybe Ra is celebrated, with party being set up
• Central body created everything in The 'RA?
• The Aztecs' Tonatiuh, for one
• The Aztecs' Tonatiuh, e.g
• Amen-Ra sends party animals round
• Helios, to ancient Greeks
• Helios, in Greek mythology
• Deity above celebrated with poems, not half