I have no doubt that some who claim to commune with angels really have been able to establish a link with angelic beings – though not in the way they seek. Scripture warns us plainly that Satan and his messengers often appear as angels of light (2 Cor. 11:13-15). In other words, demonic beings take advantage of the gullibility of people who are actively seeking to communicate with the spirit world. “Angelmania” turns out to be sheer occultism, with all its horrible effects. Many people have been drawn into serious demonic bondage by these practices, and Christians should be strongly warned against them.
John MacArthur