Revelation 12:1 A great and wondrous sign appeared in heaven: a woman clothed with the sun, with moon under her feet and a crown of twelve stars on her head. She was pregnant and cried out in pain as she was about to give birth. This woman is the bride of Jesus, the church. It is told that Satan (dragon) pursues the woman. Revelation 12:14 The woman was given the two wings of a great eagle so that she might fly to the place prepared for her in the desert where she would be taken care of for a time, times and half a time, out of the serpents reach. (3 and half years in other words). The Satan pursues the woman but is unable to catch her. It is said Rev. 12:17 Then the dragon was enraged at the woman and went off to make war against the rest of her offspring—those who obey God’s commandments and hold to the testimony of Jesus.
It seems that there are two groups of people, those in the desert and those who are left home. In Revelation 13 it is told that when the people take the mark of the beast Christians can’t buy or sell anything. This is perhaps the last three and half years. The desert is the opposite of the sea, and the sea symbolizes multitudes of people very often in the bible. So it may be that the desert is simply uninhabited regions. And it may be that those who can leave for the desert with an aeroplane, the rest are diabetic and people like me who have mental medicines, they have to take the rage of the dragon.
Here two quotes from the bible: Jeremiah 5:21 Hear this, you foolish and senseless people, who have eyes but do not see, who have ears but do not hear: Should you not fear me?” declares the LORD. “Should you not tremble in my presence? I made the sand a boundary for the sea, an everlasting barrier it cannot cross. The waves may roll but they cannot prevail; they may roar, but they cannot cross it. And Micah 4:10 Writhe in agony O Daughter of Zion, like a woman in labour for now you must leave the city to camp in the open field. You will go to Babylon; there you will be rescued.
Remember that the end comes like a thief, it can come at any time although the prophecies may seem not to hold yet. I suggest survival for every Christian, in case the end comes.