Daydreaming sometimes gets a bad rep, since some people see it as a waste of time. When you have 20 minutes of downtime, shouldn't you be using it more productively? Studies show that daydreaming actually is productive. It has the power to help you be more creative and even motivate you to achieve your goals. So go ahead and give yourself permission to make daydreaming part of your day.   A study conducted at the University of California, Santa Barbara found that daydreamers did 41 percent better on tests measuring creative thinking than people who didn't daydream.  On the other hand, when you let your mind wander away from the present to fantasies that will probably never come true, like wishing you would win the lottery, daydreaming can actually make you feel less happy. Studies seem to indicate that focusing on the present moment leads to greater happiness, so try not to let your daydreaming turn into escapism. Daydreaming, like dreaming at night, is best done when you're in a relatively peaceful environment without a lot of pulls on your attention. Before you start a daydreaming session, try to create a quiet, relaxing atmosphere for yourself, even if you only have a few minutes to spare. This can be done anywhere, anytime, whether you're at home or out and about during your day.  If you can, find a quiet spot in which to daydream, like an empty room or even the bathroom. If you want to daydream in a public place, wearing headphones is a good way to quiet your world enough to let your mind wander. But make sure you pay a little attention to the outside world every now and again. Before you daydream, make sure you aren't hungry, thirsty or otherwise in need of something that could distract you from your daydream. Listening to music can help tune out other distractions and also make the daydream even better, as music is full of emotion. Just pick songs that fit the mood of the dream you are having. Everyone's "daydreaming face" is a little different. Some people find it easy to let their minds wander while...

How would you rephrase that briefly using Vietnamese?
Cho phép bản thân được mơ mộng. Giải phóng bản thân khỏi những điều phân tâm khác. Nhìn ra bên ngoài cửa sổ hay nhắm mắt lại. Hãy mơ mộng theo hướng tích cực.