Anyone who teaches knows that you don’t really experience a text until you’ve taught it, in loving detail, with an intelligent and responsive class.
If you are a writer you locate yourself behind a wall of silence and no matter what you are doing, driving a car or walking or doing housework you can still be writing, because you have that space.
Probably nothing serious or worthwhile can be accomplished without one’s willingness to be alone for sustained periods of time, which is not to say that one must live alone, obsessively.