While we look not at the things which are seen, but at the things which are not seen: for the things which are seen are temporal; but the things which are not seen are eternal. 2 Corinthians 4:18 KJV
Faith is the means by which we are enabled to see the yet unseen.
What we are able to envision is appropriated by believing and speaking. It is our supernatural covenant with God in Christ Jesus that affords us the right to receive every promise found in the Bible.
Now faith is the substance of things hoped for, the evidence of things not seen. Hebrews 11:1 KJV