The Devil also has his companions, the daemons. Daemons are angels that are fallen. They are more powerful than we are without God’s grace, but we are more powerful than they are in the order of grace.
Daemons and angels are pure spiritual beings. They do not have physical bodies. Because they do not have bodies, they are not bound to the laws of nature. Nor are they bound by time. Einstein’s law of relativity is great contemplation when thinking about this reality of faith (faith and reason go together). Along with saints who have died, they can be at many places at one time. Very few saints had this ability before they died. Two of them were St Padre Pio and St Faustina. We have many saints and angels to help us along our way. Ask them for help.
The Devil and his daemons hate humans. We know that Satan was once known as Lucifer, which means “Light Bearer”. He was by far the most powerful of all creatures God ever made. He was to bring the light of truth to all beings. Because he was not bound by time, he could see far into the future, but only to the point of when God became man. This made him and his minions angry. You see, he was an angel and was infused with God’s knowledge. He did not have to work for knowledge like we humans do. This makes them superior to us humans. Because of the birth of Jesus, God was united with humanity in a way that angels could not. So though by the order of nature angels are superior, humans by the order of grace became superior. That meant that the angels must serve us; hence, we have guardian angels. But one third of the angels decided not to serve humans (Rev 12:4) and therefore fell from heaven. They are jealous that Jesus united humanity to Himself in the incarnation and continues to unite Himself to us in the Eucharist. That is why he particularly hates the Catholic Church. The Eucharist is the Body of Christ (Cor 10:16 ). When we partake of the Eucharist, we take into our body, the body of Christ. The two flesh become one. It is an intimate communion that the angels cannot partake of. Love unites us with God in a way that they cannot be united. That is the reason for their jealousy.
Satan and daemons are creatures. They are not equal to God. God created them. He created them to be good. To Satan, we are a speck of sand, but to God, Satan is a speck of dust. By virtue of our baptism, we are made sons and daughters of God. Therefore, we do not have to succumb to Satan’s attacks. Jesus bought us back with the price of His own blood. The only way for Satan to have power over us is when we commit a mortal sin. Once we commit a mortal sin, we take ourselves out of God’s protection. To be back in, we have to confess our sins and receive His mercy. This is our protection, God’s mercy.