I write about things that happened to come up for me, and how they made me feel or what they made me remember from my past--kind of like connecting the dots. Or sometimes I write about a reaction I had to a book I am reading or to a movie I saw. Or to current events. Sometimes I write poems or will look on the Internet for an image that recapitulates what I have been feeling and then paste that in to my journal document (I do mine in Word). Last week my roommate from college died and I wrote some memories about her in my journal--the traits that I admired her for and made me like her so, some of our fun times together, etc. "Anything goes" in your journal; you can't make a mistake. Just write whatever comes up for you or that you want to explore. A journal is an opportunity to learn about yourself.