https://www.youtube.com/watch?v=WwJtFhE4wEE
TL;DR — This video delves into the traditional Catholic understanding of God as the Creator, focusing on the nature and roles of angels. It explains that angels are pure spirits created by God, initially tested and confirmed in their nature, with some falling due to pride and others remaining faithful, forming the celestial courts. The summary also touches upon the reality of demonic possession and the Church's rites for dealing with it, emphasizing that while demons can influence the material world and tempt humans, they cannot force sin, and that faith, prayer, and devotion are key defenses.
Takeaway — Understanding the spiritual realm, including the nature of angels and the reality of demonic influence, is crucial for spiritual defense, with faith, adherence to Church teachings, and devotion to Mary serving as primary protections.