I'm not a religious person, but I do have spiritual moments every so often. I'll touch on two, maybe three of them.

I've been to France twice now, and both times I've made my way to Normandy. The picture below is one that I took my second time going there. It was a very windy and rainy day during the morning while I was at the cemetery and beaches, but managed to clear up by the time I made my way towards the preserved bunkers. Nowadays it is a serene place, incredibly peaceful. I'm sure it was more or the less that way during the entirety of it's existence, save for WWII and maybe some Breton/French/English war. Being there and thinking of how many people died on the spots that I was walking about how integral of an effort it was was a spiritual experience for me.

The next is more general, but whenever I'm at a concert and everybody is singing along or people are dancing/moshing to the music and suddenly the individuality is lost. All that is left is a mess of people becoming one with the band and the music that is in the air. It's an incredible experience when you lose yourself in something more and just let the music take over. That, to me, is an entirely spiritual and therapeutic experience.

(Stage Rush during the last act of a concert I organized.)

Also, I would agree with your view on spirituality and being in love with another person.