What should I highlight in this application question?

Hello, I am currently applying for a fellowship program with Mental Health America in Los Angeles. I am nearly done with the application, but I am having trouble answering this essay question:

“How do you envision using the skills and knowledge that you will learn in your future?”

I would just like some pointers about what I should highlight. Should I write about past work and volunteer experiences, or should I have specific career goals here?

For those who want more info about the program: it consists of two weeks of intensive courses, followed by a ten-week internship with an affiliated internship. It’s “designed to prepare participants for entry level positions in the public mental health field.”

Thank you all in advance for your responses!