The Eucharist is a powerful sacrament, one that brings us closer to God, inviting his presence into our very body.
St. John Chrysostom knew this keenly and spoke in one his homilies of the Eucharist's power to drive away demons.
Chrysostom explains why we become "terrible to the devil" after receiving Holy Communion.
It should come as no surprise that the devil will often lead people away from Mass and receiving Holy Communion, doing all that he can to influence a person to abstain from the Sunday Eucharist.
This is also why exorcists advise people feeling oppressed by demons to receive the Eucharist frequently.
If you want to fend off spiritual attacks, go to Mass and receive Jesus worthily, inviting him into your body and soul to drive away any evil presence still lurking there.
