Tie the concluding ideas to the opening paragraph. A personal essay can also be a personal opinion about a topic or issue that is important to you.
Write in your own voice, in your own writing style. But I never liked reading short pieces in my leisure time. Try not to add new information in this section, as it is only for summarizing the essay not for introduction new details.
It is based on feeling, emotion, personal opinion, and personal experience.
A word of caution here: Do not try to use this as a way to "butter up" the admissions committee, because if there is any reason to believe that you are not sincere, your application may be adversely affected. This type of writing generally incorporates both narrative and descriptive writing, which are two of the main modes of writing.