Did you know that the microbes on just one of your hands outnumber all of the people on the earth? Or that millions of microbes could fit into the eye of a needle? These one-celled, living organisms are too small for us to see without a microscope, yet they live in the air, soil, water, and even in our bodies. We constantly interact with them, even though their world is completely beyond our senses.

The realities of the spiritual world are also often not visible to us humans, as the prophet Balaam discovered. He was trudging along the road with his two servants when his donkey “saw the Angel of the Lord standing in the way with His drawn sword in His hand” (Num. 22:23). To avoid the angel, the animal walked into a field, crushed Balaam’s foot against a wall, and lay down with Balaam still on her back. Balaam was angry and struck the donkey. He didn’t realize something supernatural was going on—until God opened his eyes (v.31).

The Bible tells us that a spiritual world does exist, and we may sometimes encounter realities from that realm—both good and bad (Heb. 13:2; Eph. 6:12). Because of this, we are encouraged to be watchful, prayerful, and prepared. Just as God rules the world we see, He also rules the unseen world.