So he answered, "Do not fear, for those who are with us are more than those who are with them."
And Elisha prayed, and said, "Lord, I pray, open his eyes that he may see." Then the Lord opened the eyes of the young man, and he saw. And behold, the mountain was full of horses and chariots of fire all around Elisha."
2 Kings 6:15-17 (NKJV)
If several people were sitting in a room and they were all looking out of a window, you could ask them what they see and they would probably give you several different answers. One person might say that they see some trees, while another person might talk about seeing some birds, and another person might say they see some clouds in the sky. It is not that they are actually seeing different things, but these people are all looking at different things that are outside of the same window.
In 2 Kings 6, it tells us that the King of Syria was angry with Elisha so he sent the army to capture him. When Elisha's servant looked out in the morning, he saw that the city was surrounded by the Syrian army. This was shocking and upsetting to him, so he ran to ask Elisha what to do. Elisha simply said that there were more on their side than on the Syrian side. Elisha prayed that his servant's eyes would be opened and the servant then saw horses and chariots of fire surrounding Elisha; God's protection was already there for Elisha.
What was the difference between what Elisha and his servant saw? They were in the same place in the same city, but they were looking at different things. The servant was looking at the natural situation while Elisha was looking past the natural situation to the spiritual situation. It is easy to be upset, afraid, and discouraged when we only look at the natural situations we face, but we must look past the natural to the spiritual. We must focus on the spiritual truth we see in God's Word and not just the natural situation; we need to look at what God says about our situation.