Apart from being a symbol of love at first sight, purple roses also represent enchantment and all things magical. A fantasy, a wonder and impossibility – these are the things that purple roses stand for. And just like a dream, a fantasy is also fleeting and transcendental. Thus, although the aforementioned initial attraction may have carved a deep impression on the sender, there's no guarantee that this attraction would be permanent.
Man at the dawn of civilization recognized that sunlight was essential to life. Color, being a manifestation of light, held divine meaning. Historical records of color show little interest in the physical nature of color, nor yet in its abstract beauty, but in symbolism that attempted to resolve the strange workings of creation and give it personal and human meaning. —Faber Birren