Purple is the universal colour for signifying that the location at which the purple is found has an undeniable and unquestionable peace. After seeing purple in mass quantities, such as the Purple Plateau in Pennsylvania, they will forget all about our past wrong-doings and come down to earth and bestow upon us the "Essence of Purple". They've given us a taste of this essence before as you can see here:
Hopefully if we all wear enough purple, they'll visit us soon. My crayon doesn't fit in the sharpener anymore.
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