Predestination is God-centered because God delights in it as a means of spreading the delight that He has in His own superior worth. It means that we have a glorious God. It means that God takes delight in our salvation because it glorifies Him by bringing us into the amazing enjoyment of His infinite worth. The God-centeredness of God's love is an amazing thing. Let this knowledge bring us into a greater adoration of our God.
Predestination is also a very hopeful and encouraging truth.
Understanding that God predestined us gives us deep, confident security and trust that God will fully accomplish His plan for each of us. This frees us to zealously and confidently obey and persevere through trial and temptation. And it encourages us to pick ourselves back up when we fall. Part of the answer seems to be that by letting some people perish in their sins, God's mercy and grace is more glorified than if He had saved everyone. This truth is not to be taken lightly.