God puts a bit of Himself into us.
He lends us a little of His reasoning powers and that is how we think.
He puts a little of His love into us and that is how we love one another.
When you teach a child writing, you hold it's hand while it forms the letters:
that is, it forms the letters because you are forming them.
We love and reason because God loves and reasons and holds our hands while we do it.
~ C.S. Lewis, Mere Christianity