Is there any benefit to daydreaming?

We spend up to 50% of our waking time letting our minds wander. Is this just wasted time or does it perform a useful function?You have won £4m on the lottery – how will you spend it? Before you know it, that’s 10 minutes gone on daydreaming. But what about driving in your car and arriving at your destination without remembering how you got there. There is a time and a place for daydreaming, but we don’t have much control over when we do it. Since an estimated 30%-50% of o