I think you're interpreting it correctly. Really, Essay 1 is the standard "why do you want an MBA?" question that all schools ask. For Essay 2, they're more looking for evidence of how you've overcome adversity, which leads to maturity, leadership skills, compassion, etc. We talk about this type of essay in our book.
While the goals you discuss in Essay 2 can be professional, I think that personal goals can actually make for a more compelling essay.
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