Creativity: using your imagination to envision something.

Problem-solving: using your imagination to envision solutions to problems.

Inventing: using your imagination to envision solutions that are new and non-obvious.

Innovating: using your imagination to make existing solutions useful in new ways.

Science: using your imagination to envision ways of answering open questions.

Serendipitous discovery: using your imagination to make sense of something that happened by chance.

Art: using your imagination to envision something that would evoke emotions.