My best take on it right now is that it helps your mind relax. At home or at office you're surrounded by a lot of objects and factors which are constant reminders of things daily duties and such, and that lowers your level of free attention. At home there are also too many opportunities for procrastination.
And on the other hand if you were sitting in a hotel room (though this works for some people), the isolation and bland walls gives you too little stimulation, and your woolly subconscious start acting up and playing games with you.
I think the cafe or park or such places are a good in-between place where you're away from a lot of your stressors, and yet you have a bit of semi-interesting things and activities going on around you which you can look at while the mental wheels are free-spinning, but are not too hard to look away from when the machine works.
|Photo by Jane Birkin|