Firstly i realy like your post's title name.
There is no need to read the full post if we read the title line at applying ourselves. This line reminds itself a great meaning and experiences of life.
If we want to be a great person than a bad we should make ourselves busy because a person have only a soul but a soul have two types of a side as a "coin".About the soul-a demon nature and a good nature.
So busyness make us busy for not thinking about evil deeds.