The Great Teacher calls on nature to reflect the light that floods the threshold of heaven, that men and women may be led to obey His word. And nature does the bidding of the Creator. To the heart softened by the grace of God, the sun, the moon, the stars, the lofty trees, the flowers of the field, utter their words of counsel and advice. The sowing of the seed carries the mind to spiritual seed sowing. The tree stands forth declaring that a good tree cannot bear evil fruit, neither can an evil tree bear good fruit. “Ye shall know them by their fruits.” Matthew 7:16. Even the tares have a lesson to teach. They are of Satan’s sowing, and if left unchecked, will spoil the wheat by their rank growth. (CT 189.1) MC VC

When man is reconciled to God, the things of nature speak to him in words of heavenly wisdom, bearing testimony to the eternal truth of God’s word. As Christ tells us the meaning of the things in nature, the science of true religion flashes forth, explaining the relation of the law of God to the natural and the spiritual world. (CT 189.2) MC VC

The swallow and the crane observe the changes of the seasons. They migrate from one country to another to find a climate suitable to their convenience and happiness, as the Lord designed they should. They are obedient to the laws which govern their life. But the beings formed in the image of God fail to honor Him by obeying the laws of nature. By disregarding the laws that govern the human organism, they disqualify themselves for serving God. He sends them warnings to beware how they break His law in breaking the laws of life; but habit is strong, and they will not heed. The days are filled with pain of body and disquietude of mind because they are determined to follow wrong habits and practices. They will not reason from cause to effect, and they sacrifice health, peace, and happiness to their ignorance and selfishness. (CT 189.3) MC VC