Atonement represents and reminds us that Satan will be put away - put into a condition of restraint so that he cannot deceive the nations - after the return of Christ and at the beginning of the millennium.
But we in the Church have an opportunity - and a responsibility - to put Satan out of our lives right now, in a limited sense.
We cannot put Satan and his influence out of our lives completely, as he will be put away during the millennium. Satan still broadcasts his wrong thoughts and attitudes through the air (Ephesians 2:1-3). He still tempts us. He still rules this society and world and creates circumstances that make it difficult for Christians, both because of persecution and because of the temptations created in society.
But we can put some of Satan's influences out of our lives by limiting or eliminating our exposure to many of the elements of this world that Satan uses to influence people, primarily, the entertainment and recreation of this world: television, movies, Internet videos, games, etc.
This world's entertainment is corrupt and ungodly in many ways. Violence is a common theme. So is sex. The occult is often portrayed. God's name is commonly taken in vain as an expression of surprise or emotion. Music is corrupt.
It is hard to find good programs to watch.
We can diminish Satan's influence over our minds by avoiding wrong entertainment and recreation, which, sad to say, includes most entertainment this world offers.
In this way, we can, to a degree, put Satan and his influence out of our lives. We can also limit Satan's influence by choosing, when possible, the friends and people we spend time with, and by putting wrong, Satan-inspired thoughts out of our minds.
Atonement can remind us of this, just as the days of unleavened bread teach us to put sin out of our lives.
"If your right eye causes you to sin, pluck it out and cast it from you; for it is more profitable for you that one of your members perish, than for your whole body to be cast into hell" (Matthew 5:29). This is figurative - we are not to mutilate our bodies. But this shows the seriousness with which we should limit what we watch.
"Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him. For all that is in the world—the lust of the flesh, the lust of the eyes, and the pride of life—is not of the Father but is of the world. And the world is passing away, and the lust of it; but he who does the will of God abides forever" (1 John 2:15-17).
The Feast of Tabernacles represents the millennium, one thousand years of happiness on the earth under the rule of Christ and the saints. The absence of Satan's influence will be one reason for that happiness which the Feast pictures. It is therefore especially important to be careful about the entertainment we enjoy during the Feast. This is an opportunity to get away from the ways of the world - let's make it as complete as possible by avoiding wrong entertainment during the Feast.
And all through the year, let's limit and carefully screen the entertainment that we expose ourselves to. That will make putting sin out of our lives easier.