"To inspire the imagination" means to spark or stimulate someone's creative and imaginative thinking, by captivating their thoughts and ideas. Full definition
Each is designed to inspire the imagination of industry professionals and consumers alike. (japanesesportcars.com)
Building toys inspire the imagination, and that's why kids love them. (thespruce.com)
When you're a little kid first learning about the magic of fruits and vegetables, certain veggies inspire your imagination more than most. (petconsider.com)