If you read enough of joyofsatan.org you would know that this is in fact possible but it's not for everybody, you need great advancement to do this. By saying that something is not possible without any proof of it not being possible is foolish, granted that no evidence of it being possible is still a sign that it isn't, I assure you people can and have done it. This is connected to the astral as all things are, information is based on thought as thought is based on information, don't ever say something isn't possible, that's not the attitude of a satanist!