pur·ple \ 'pǝr-pǝl \
1: regal, imperial
2: of the color purple
Purple and violet promote harmony of the mind and the emotions, contributing to mental balance and stability, peace of mind, a link between the spiritual and the physical worlds, between thought and activity. Violet and purple support the practice of meditation.
\ 'pān \
1. a basic bodily sensation induced by a noxious stimulus, received by naked nerve endings, characterized by physical discomfort (such as pricking, throbbing, or aching), and typically leading to evasive action.
Even though these two seem to conflict with each other in the tattoo world they seem to be part and partial. Most when getting a tattoo feel pain but at the same time it is a pleasure pain. Therefore Purple Pain is the definition of a calming pain that most want to get again and again.