Many things are there we can touch and also being seen, only we can feel it in
But I apreciate what you said coz there some more beautiful thing which can not touch, for example air, we feel and enjoy, but can't see it or touch it, same way nature, we see & enjoy but can't touch.
Happy memories are the most beautiful things. Because once something wonderful has happened, it will have always happened, even when the universe has come to an end.