Memory uses the imagination. Fear and faith operate in the realm of imagination. Many top athletes successfully use their imagination in training. Vividly imagining a successful action seems to be more effective in training than doing it physically. When we experience an event vividly in our imagination it is imprinted as an experience, even though we did not physically do it.
Children seem to naturally have active imaginations.
Everyone has used their imagination negatively by worrying. We should use the same process in a positive way, based on God's Word. The following three common statements express the same meaning. I can't see that happening. For the things which are seen are temporary, but the things which are not seen are eternal.