That story shows your hard work, dedication, and generosity without ever referring explicitly to these fantastic qualities. The personal statement is the only part of your application where you can show admissions officers your individual personality. Take this opportunity to expand on your application -- but remember to re-read your essay with the prompt in mind.
Essay questions are referred to as "prompts," and you should take that meaning literally. Tell a story that is short, sweet, and narrowly focused on a single event or idea. It was just me and the light. If you don't plan on using the Common App, these prompts can still offer insight into a topic you'll likely be writing on for your school of choice.
Compel them to fight for you by providing as many clues to your character as possible. The college application essay is your opportunity to distinguish yourself as something more than an anonymous collection of academic stats and achievements.
If you're pre-med, provide a list of courses that specifically interest you: What class or professor you would like to learn from?
In other words, in our increasingly diverse and interconnected world, your EQ will help you become a successful and responsible member of the college community and a citizen of the world.
Most are in the middle: not great, not awful. Describe a topic, idea, or concept you find so engaging that it makes you lose all track of time. Just keep a healthy perspective on its relative importance as you write.