The view is one of greater enlightenment, making so-called name calling such as heretic, apostate, heterodox etc. Reformed thought holds that any relationship not defined by doctrine is idolatry. Example, it is treasonous, sinful behavior for one who is saved to knowingly marry an unbeliever. Example, not dealing with the heretic according to Scripture is sinful. Unity based on confessional orthodoxy breeds sound relationships.
Unity based on relationships is fraudulent.
Thus, great premium is placed on new and greater mystical experiences whether Biblical or not. Reformed orthodoxy demands the testing of all experience precisely by the Law Word of God. Seeking to experience the communicable attributes of God as delineated in Scripture is permissible. You may not seek to experience that which is reserved for God alone. Herein was Adam's folly.