How does Jostein Gaarder use imagery in Sophie's World?

Imagery:

"We can recognize that there is a God just by walking around in the natural world. We can easily see that He loves flowers and animals, otherwise He would not have made them. But information about God, the person, is only found in the Bible—or in God's 'autobiography,' if you like."

"Suddenly Joanna got up, walked determinedly over to Jeremy, and gave him a resounding kiss on the lips. He responded by trying to topple her backward over the table so as to get a better grip as he returned her kiss."