Thin Purple Arc

The Thin Purple Arc was one of two epochs in the lives of the residents of the planet Fragrance. It was the period of time roughly equivalent to Human adolescence. It was followed by the Fragile Yellow Arc, the period of time from falling in love to death. When the two arcs were put together, they formed a metaphorical circle, around which each person got to travel once in their lifetimes. People were said to make the journey from the Purple to the Yellow Arcs via the "Bridge of Love", or the moment at which love for one's partner was first declared. Rhythm left behind the Thin Purple Arc when he announced his love for Barbara Wright on the shores of the Emerald Sea and kissed her for the first time. (BFA: The Fragile Yellow Arc of Fragrance)