We probably do not give much thought to Einstein’s saying, “Imagination is more important than knowledge,” other than that it was spoken by Einstein.
To us, knowledge is already gained wisdom and when you learn it you do so through reading, or perhaps you were taught by a teacher or through other means (we are using the word knowledge with the exclusion of inner knowledge here.) Either way, it does not require much effort on your part. You are told so and so; you understand it or not, but it’s always there.
However, imagination is a creative process.
It is a creation from nothingness to something, and it is not restricted by anything known before. You birth a novel idea into your conscious awareness that may have a significant impact to humanity. To use Einstein’s own words,
Imagination embraces the entire world, stimulating progress, giving birth to evolution.