In your cover letter, you can express your passion for UX design by sharing your personal experiences with design and how it has positively impacted your life. You can also describe your excitement for the opportunity to help others through design and how you plan to use your skills to improve the user experience for a company or organization. Furthermore, you can share your future goals for your career in UX design and how you plan to continue learning and growing in the field. By sharing your story and your goals, you can demonstrate your passion for UX design and why you would be an excellent fit for the role.