Pagans did get some things right. Salvation does mean rescue from Hades, and it does mean being seated together with the Most High God. But they were wrong when they thought you could get it by impressing the gods.
In the baptism and chrismation that we are given, and in the Eucharist with which we are strengthened and divinized, we are given all that we need in order to become members of the hosts of heaven.
Faithfulness to justice, to righteousness, is what it means to be Christian and what is required to stay within the kingdom of God, both in this life and into the age to come.
To be the sons of God, we do the works of the Father in heaven. If we instead do the works of the devil—which are sin—then he is our father instead. And if we do the works of the Father, then we become equal to the angels, the original “sons of God” who do His works.
Having been given this outpost of Paradise, this place where God’s holiness may be encountered with preparation, where the cherubim with the flaming sword welcome us in instead of turning us away, we are commanded to expand this Paradise into the world.
The targeted demonic attacks we experience especially in this holy season are real, and we can spot them because of how they are so specifically designed to pull us away from participating in it. But these things do indeed come out by prayer and fasting.
You will be in communion with something, even pigs, even demons. There is no neutral space. You have to eat.
The cosmic war between God and His enemies the fallen angels is going on all around us and even within us. And we have been given the Cross, the very Staff of God, as a weapon against the demons.