I'd be interested in exploring the ascetic dimension of procrastination.
That may ring the wrong religious bells but the problem of procrastination in the West was first of all, and there's a lot of documentation surrounding this, a religious problem. Saint Jerome is the first to directly speak of idleness but it's even there in Paul's letters: How do you secure a base of pagans for your Judaic sect in a world swimming with very similar cults and mythologies? Keep em busy with your sect.
This is related to the consistent demand for communal surveillance stretching throgh all the church fathers; everyone should make sure everyone else is busy being faithful. So I wonder how and at what point that discussion of procrastination transforms into the modern formulation?