In the above link, the 'analizer' says Beth Moore promotes contemplative prayer, which is emptying of the mind, thus inviting basically demonic teachings to fill it. She specifically says it is for communion with God, not just letting it go empty and see what happens. This is one reason I would not listen to the author of the former article. I do not listen to Beth Moore myself, did once and was not interested.
You can get book or listen to her yourself with caution, if you already have knowledge on the bible yourself that is.