When you set to create your personal statement for college, you suddenly are not in that world anymore, and you know it deep inside. Seriously, no one from admissions wants to read another essay about how much someone was inspired by Gandhi, or Martin Luther King Jr. No one wants to read your personal statement for college about the first time you played football with your dad, or learning the value of teamwork from a little league game. No matter what you write, the chance is that they have heard it all so often before, and they are surely going to hold that fact against you.
Your medical school personal statement needs to sell. Every single word has to sell your reader and answer the question: "Is it worth my time to read one more word of this essay?" To be persuasive is to sell your reader on your next sentence, your next paragraph, your next idea of your medical school essay.