Sometimes you feel kind of like you're lost in time or something—you forget about your issues and everything for a few seconds.
This happens especially when you see a beautiful photograph or listen to a pleasing song, or maybe when you witness the melancholic sunset view and it makes you sit there and do nothing.
You can't describe that feeling, it's not like a particular emotion but it can be anything. It can be nostalgia, melancholy or euphoria or mixed emotions but you don't understand what you're feeling and you feel it to such a degree that you feel like you've felt something from the other side, that's how I usually word it.
So, do you know any word or expression to describe such a feeling?