I'm wondering if any other atheists here have ever had a "spiritual" experience. I've put the word "spiritual" in quotes because as atheists, we don't tend to believe in spirits.
I tend to define myself as agnostic rather than atheist, mostly because the humility of admitting that I don't have all the answers seems more fitting than the somewhat arrogant attitude of flatly crying out that 'God is great' or 'God is dead' or wherever some people's beliefs take them.
So as an atheist who has never seen or heard of any credible evidence of the existence of God or of the truth of the 2000 year old myths that many are a fan of, I have had many experiences that I would consider spiritual. Spiritual, that is, in the sense, that they are not easily defined or explained in the terms of the material and scientific world and also that they were a memorable, positive experience.
One experience in particular sticks in my mind, something that happened to me half a century ago when I was a young man hitchhiking around Europe, doing the post Woodstock adventure thing, headband, long hair and all. This was in Munich, a city in the far south of Germany, and as nightfall approached I was looking for somewhere safe to camp out until the morning.
At this point I have to add that having grown up in Norway, I had learned German in school from grade 8 and spoke and understood that language quite well. However, as a safety measure when travelling, I did not always let on that I knew the local lingo.
At the entrance to the park I was considering I was approached by a couple of German males, around the same age as me, who asked if I was looking for somewhere to sleep. I confirmed that I was and one of them said something like 'follow us, the police often harass people who sleep out, but we know where to go'. At this point we were speaking English.
I tagged along into the park until eventually they stopped as we were walking under a canopy of trees. They said 'We can sleep here safely'.
As I lay on the ground in my sleeping bag, looking up at the trees, and occasional openings to the clear sky and nighttime stars, I was able to listen to the conversation of my two companions. It was not particularly comforting, as they were discussing who was going to cut my throat and determining what they would need to do immediately afterwards, including going through my pockets, my backpack and so on.
At some point during that conversation I looked up and noticed a particularly beautiful configuration of stars above the canopy. Then incredibly, I fell asleep.
I had a rather brutal awakening probably not long afterwards, from the leather boot of a German cop prodding me in the side and shouting 'Aufstehen, Aufstehen!' which I took to mean that I should get up. The three of us who were on the ground were bundled into a paddy wagon and taken to the local police station where we had to produce our papers etc., as the fashion always is in Germany, and were interrogated.
I saw that my two sleepmates were led away in handcuffs, while I was told I was free to go. The officer who told me that also said I was one lucky man, because the other two were wanted on Germany wide warrants for various assault and robbery charges.
So I was free to go, but somehow that experience did get lodged in memory, and in a sense I suppose I could say it was a spiritual one of sorts.