From Mihaly Csikszentmihalyi’s book Flow:
Not so long ago, it was acceptable to be an amateur poet or essayist. Nowadays if one does not make some money (however pitifully little) out of writing, it’s considered to be a waste of time. It is taken as downright shameful for a man past twenty to indulge in versification unless he receives a check to show for it. And unless one has great talent it is indeed useless to write hoping to achieve great profit or fame. But it is never a waste to write for intrinsic reasons. First of all, writing gives the mind a disciplined means of expression. It allows one to record events and experiences so that they can be easily recalled, and relived in the future. It is a way to analyze and understand experiences, a self-communication that brings order to them.