It's not necessarily about nature, though for many of us that is where we find what we are looking for. It's more about taking a minute or thirty for yourself. In that time you aren't being productive, but you are giving your mind a much needed rest. It could be watching the lights from cars on a road late at night. Or staring at leaves. Or just getting a good view of your city from a high vantage point.

That's not to say that there aren't obnoxious people always talking about how "enlightened" they are. I'd say they are in the minority, however.