What I have noticed, is that a person's sin has a natural effect, to provoke it's victim to sin.
For a basic example, consider someone who is envious and steals. The victim is naturally provoked to anger. Someone who lusts, then the one who is offended is provoked to pride. Someone is so greedy to the point of injustice, then the one who was deprived is provoked to envy, theft or anger. These bad spirits then travel with the victim, inflicting upon the ones who bear the brunt, until the victim is healed. One of the titles of The Christ, is "Wonderful Counselor". If we are living in unity with Him in Holy Spirit, He is able to work effectively through our activity, to heal others as The Wonderful Counselor.
If the impact of sin is never absorbed, then it doesn't disappear, but it grows in prevalence as it pervades a community. We do see this happening in the world today, because of the great apostasy where the majority of Christian teachers promote false and watered-down doctrines, themselves being slaves to sin, refusing repentance, so they misrepresent The Holy Spirit, and they even despise Him when He presents! Subsequently, due to a serious shortfall of vital truth being promoted, and an abundance of immorality from worldly propaganda, wickedness continues to increase and the love of the many grows ever colder.
Suffering is the core principle of Christianity, to absorb the impact of sin (forgive and love the sinner), so that God is able to manifest His healing, empowered by love.
An interesting note I took from church yesterday, is that we are all battling to stay on top of various things in our life. We don't really know what the people around us are battling with, because we don't see and hear all that they do, and we don't have their responsibilities. So it is important to not take personal attacks too personally, because the sinner is only doing it to inflict us. Have you ever noticed that the most obnoxious, hurtful people start out so nice? Once they learn of our weaknesses, their evil spirits manifest against us.
This is the human nature of a sinner. As they say, "misery loves company". Yet, The Holy Spirit of God has supreme power to drive out evil spirits, and they will find no welcome return if we have empowered Him to heal that one, by sufficiently demonstrating love. It is impossible to do this when encountering someone's evil spirit, unless we suffer.
Love is patient, kind, not easily offended, keeping no record of wrongs, and always seeking good.
Our own sin, on the other hand, seeks to destroy our love. When we engage blow-for-blow, sin escalates. When we suffer in Holy Spirit, God acts for justice to the lowly and afflicted.
