Find a quiet place where you will not be interrupted or distracted. Your mind needs to be completely unhindered for this exercise. Try to forget about anything that may preoccupy your thoughts.
Set an alarm clock or wristwatch for a set period of time, usually about 10 minutes. Put the clock or watch where you cannot see it so that you won't be checking the time every few minutes.
Begin writing. Write whatever comes into your mind, no matter how nonsensical or random. Don't worry about grammar, spelling or punctuation. Let the words flow freely, and skip from subject to subject at will.
Write nonstop until the alarm sounds, even if you must write "My mind is blank my mind is blank" until something new emerges. Try to get in touch with your inner thoughts and feelings and let them direct your writing.
Stop writing when the alarm sounds.
Read over what you have written. Look for ideas or concepts that have emerged and that might be helpful to you in gaining personal insight, in finding direction in your writing or in pointing you to a special project.
Try to schedule time for free writing every day, if possible. It will develop your right brain over time and train you to think more clearly.