This is what I've been struggling to achieve since January, with lamentable results. Not zen meditation, not alpha wave bliss; deep focus has been my object and remains a distant condition, nearly mythical, whilst I flounder in distractions and tangents.
My life is not that complicated. One would think I can work my forty hour week and sleep sufficiently, with ample time to gear into a state of deep focus. It hasn't happened. The central premise is to become a better writer, to utilize the surfeit granted me in the life of a bachelor and create devastating concentration on a task that truly consumes me. It hasn't happened.
A close friend is working on his first novel. In addition to this, he holds down a management position and has a lovely wife and two children. He shows progress on his task, even with these other monumental tasks. He writes like a wonder. He shows great progress.
Another friend not only plugs away at novels (and publishes them), he has a home life and holds down 40+ hours a week and does other writing besides. What have these men got that I don't? Better that they answer for themselves; indeed, none of us can speak for the others. Yet in my heart of hearts I know what quality of character they possess: deep focus.