Much of Jesus’ work was healing, with many of his teachings illustrating the healings. Nine of Jesus’ healing stories are actually exorcisms. While the term may be off-putting, the fact that there are so many exorcisms in the Gospels speaks to their importance. I believe “possession by devils” refers to what we now call addiction. The “possessed” person is in some sense trapped by a larger force and is powerless to do anything about it. The only cure for possession is “repossession” by Something Greater than the disease. This is why Bill Wilson said that a “vital spiritual experience” is necessary for full recovery.
I’m convinced that when the great medieval spiritual teachers talked so much about attachment, they were really talking about addiction. We are all attached and addicted in some way. At the very least, we are addicted to our compulsive dualistic patterns of thinking, to our preferred self-image, and to the usually unworkable programs for happiness we developed in childhood—which then showed themselves to be inadequate or even wrong.
The shape of creation must somehow mirror and reveal the shape of the Creator. We must have a God at least as big as the universe, or else our view of God becomes irrelevant, constricted, and more harmful than helpful. The Christian image of a torturous hell and God as a petty tyrant has not helped us to know, trust, or love God. God ends up being less loving than most people we know. Those attracted to the common idea of hell operate out of a scarcity model, where there is not enough Divine Love to transform, awaken, and save. The dualistic mind is literally incapable of thinking any notion of infinite grace.
The common view of hell and a quid pro quo God is based not on Scripture but on Dante’s Divine Comedy—great poetry, but not good theology. The word “hell” is not mentioned in the first five books of the Bible. Paul and John never once use the word. Most of the Eastern fathers never believed in a literal hell, nor did many Western mystics.
Eastern fathers such as Origen, Clement of Alexandria, Gregory of Nyssa, Jerome, Peter Chrysologus, Maximus the Confessor, and Gregory of Nazianzus taught some form of apocatastasis instead, translated as “universal restoration” (Acts 3:21). Origen writes:
Gregory of Nyssa’s two arguments for universal salvation as:
a fundamental belief in the impermanence of evil in the face of God’s love and a conviction that God’s plan for humanity is intended to be fulfilled in every single human being. These beliefs are identified with 1 Corinthians 15:28 [“so that God may be all in all”] and Genesis 1:26 [we are made in God’s “image and likeness”] in particular, but are derived from what Gregory sees as the direction of Scripture as a whole. 
If we understand God as Trinity—the fountain fullness of outflowing love, relationship itself—there is no theological possibility of any hatred or vengeance in God. Divinity, which is revealed as Love Itself, will always eventually win. God does not lose (see John 6:37-39). We are all saved by mercy. Any notion of an actual “geographic” hell or purgatory is unnecessary and, in my opinion, destructive of the very restorative notion of the whole Gospel.
.. Love and mercy are given undeservedly now, so why would they not be given later too?
Unfortunately, at the Council of Chalcedon, this view—the single, unified nature of Christ—was rejected for the “orthodox” belief, held to this day by most Christian denominations, which emphasizes two distinct natures in Jesus instead of a synthesis. Sometimes what seems like orthodoxy is, in fact, a well-hidden heresy!
Even science confirms that there is no clear division between matter and spirit. Everything is interpenetrating. As Franciscan scientist and theologian Ilia Delio often says, “We are in the universe and the universe is in us.” Christ’s very nature mirrors this universal reality, that we are all one, just as he is one within himself.
Much of what Jesus taught seems to have been followed closely during the first several hundred years after his death and resurrection. As long as Jesus’ followers were on the bottom and the edge of empire, as long as they shared the rejected and betrayed status of Jesus, they could grasp his teaching more readily. Values like nonparticipation in war, simple living, inclusivity, and love of enemies could be more easily understood when Christians were gathering secretly in the catacombs, when their faith was untouched by empire, rationalization, and compromise.
.. The last great formal persecution of Christians in the Roman Empire ended in 311 CE. In 313, Constantine (c. 272-337) legalized Christianity. It became the official religion of the Roman Empire in 380. After this structural change, Christianity increasingly accepted, and even defended, the dominant social order, especially concerning money and war. Morality became individualized and largely focused on sexuality. The church slowly lost its free and alternative vantage point. Texts written in the hundred years preceding 313 show it was unthinkable that a Christian would fight in the army, as the army was killing Christians. By the year 400, the entire army had become Christian, and they were now killing the “pagans.”
Before 313, the church was on the bottom of society, which is the privileged vantage point for understanding the liberating power of Gospel for both the individual and for society. Within the space of a few decades, the church moved from the bottom to the top, literally from the catacombs to the basilicas. The Roman basilicas were large buildings for court and other public assembly, and they became Christian worship spaces.
.. When the Christian church became the established religion of the empire, it started reading the Gospel from the position of maintaining power and social order instead of experiencing the profound power of powerlessness that Jesus revealed. In a sense, Christianity almost became a different religion!
The failing Roman Empire needed an emperor, and Jesus was used to fill the power gap. In effect, we Christians took Jesus out of the Trinity and made him into God on a throne. An imperial system needs law and order and clear belonging systems more than it wants mercy, meekness, or transformation. Much of Jesus’ teaching about simple living, nonviolence, inclusivity, and love of enemies became incomprehensible. Relationship—the shape of God as Trinity—was no longer as important. Christianity’s view of God changed: the Father became angry and distant, Jesus was reduced to an organizing principle, and for all practical and dynamic purposes, the Holy Spirit was forgotten.