So we fix our eyes not on what is seen, but on what is unseen, since what is seen is temporary, but what is unseen is eternal.
2 Corinthians 4:18 NIV
To a moving observer, their horizon is constantly changing. To a searching observer, their focus on the horizon is sometimes on detail, sometimes taking in the sweeping view.
My hope is to know God through Christ and because of Christ. My horizon is what I see of His face today. As He is kind enough to reveal Himself to me, my horizon will open up and change shape and be filled with Him, like sunlight spilling over the edge of the earth in the early morning. My horizon will constantly change as I walk with Him.