I’ve got two inner conch piercings in my left ear. One horizontal through the back of my conch and the other vertical through the lower side of my conch. I think they’re cool, but I can’t say I had any religious experience because of them.
I am officially jealous, but very glad that you had such a cool experience.
On two occasions I had lobe piercings done in both ears at the same time. It is, in fact, a pain to sleep when both ears are freshly pierced. My solution involved an arrangement of pillows that allowed my head to be supported without making contact with my ears, but maintaining that arrangement throughout the night lead to some rough nights. It is definitely easier to do it one at a time.