Riding the train gives him too much time to think, he has decided. Too much thinking can ruin you.

To have a reason to get up in the morning, it is necessary to have some kind of guiding principle. A belief of some kind

I can write for a long time on one novel and not get tired.

I think living the blessed life is the luck of the draw.

And if you ever do a survey, you'll find that people prefer illusion to reality, ten to one. Twenty, even.

Riding the train gives him too much time to think, he has decided. Too much thinking can ruin you.

Writers don't write to inform other people, they write to find out something themselves.