Dream of a blue tattoo

Recently I had a dream of a blue tattoo. It was a brilliant, bright royal blue. Someone else was preparing the dye in a big tub, which I had my feet in. I removed my feet, stained blue past my ankles, and I thought to myself that I'd always have blue feet now.

The tattooist prepared the needle, and began painting my right arm. It was a rough sketch at first, to be filled in piece by piece. A swirling pattern spiraled from my forearm up to my shoulder, and on my bicep a scarab beetle was sketched.

For one brief moment, the hairs on my arm became grey, and I thought I was looking at an old man's arm, possibly not even my own. Was I someone else in my dream? I can't be sure, but it was a jolting image to suddenly wonder, mid-dream, if it was my arm as it is now. Before this occurred, I was definitely myself in dream -- so did I become someone else, or age, after getting tattooed? I can't be sure.

I don't have any tattoos, never considered getting one. This dream literally came out of the blue.