My ex used to try and get me to do nothing more often. Why, I'm not sure. Me, I've been trying to get people to do more, if anything. There are so many things to do, and there is so little time to do them in! Why just sit around looking out the window? I'm not saying just sitting and relaxing is wrong, but I am of the opinion that engaging in activities is generally more valuable than just sitting around watching people shopping, ducks mating, a random cooking show on TV or even a spider web near the ceiling you know you should clear away but don't, or lying in bed half the day being lazy.
For me there is a sole exception: weekends/holidays. After all, workdays are called work days for a reason, so I work my ass off for those five days every week, running around like a maniac (often literally), doing everything on a high pace. In weekends, I need to recharge my batteries, and especially when I'm not at home, with my PC available and winking at me, I can suddenly sit down not doing much of anything. How weird! It is like I'm a different person then. Sometimes I don't even recognise myself. But I can't do nothing for very long at a time, as the ache will still be there (reminding me I am still myself ;)), but is just slower to manifest.
Sometimes I long for just sitting around doing nothing despite my aversion against it. But in that fantasy I am on a mountain in Norway or some such place, contemplating the universe and my place in it, and just enjoying the beauty of nature in peace.
I will, however, have a notepad in my bag, to write down my thoughts. For I can't really just be sitting around staring at stuff, now can I? ;)
"To be idle is a short road to death and to be diligent is a way of life;
foolish people are idle, wise people are diligent."
-- Buddha