The part inside you may, at times, be feeling any sort of feeling, and poetry needs you to put it down. Whether you are sad, happy, or any thing beyond or in between it will allow for somebody reading to go through what you are going through. Try to go to the past and see what you can encounter. Try to look at how you felt waking up in the morning. Try to think about your future and hope. It can be painful, but you will truly capture the nature of who you are.