If we watch the seasons, we realize that there's rebirth after death. If we watch animals care for thier young, we see how God must care for His creation. There are consequences to our actions. From the vast variety and diversity, we can gleen that God understands individualism, and within the diversity we glimps the triune nature of God. But God doesn't leave us to figure out the whole picture from creation.
Creation is only the beginning.
God has sent his prophets, and His Son, to speak to us. By His Holy Spirit, He caused His words to be recorded and preserved through the centuries. And that's what creation is all about, God loving His creation, and redeeming it back to Himself.