Only with God-given discernment can we tell apart the good and evil influences that surround us. We often come up against "demonic influences". This influence is a spiritual force that twists and taints and pollutes God's ways. It is like a spider web, and people get stuck -- writhing in their captivity, they act out of a "web mentality".
Religious spirits endeavor to interfere with the free flow of the Holy Spirit in the lives of Believers. They can be hard to discern precisely because the