I am not making any opening in your nervous system through which irresponsible and evil forces can enter and take possession of you. In fact, if any spirit, good or bad, should make such an attempt, he would have to reckon with me, and I am not powerless. I know now, have both remembered and been taught, secrets by which I can protect you from what is generally known as mediumship. Furthermore, I advise you never, even at the urgent prayer of those whose loved ones have gone out--_never_ to lend yourself to them. The wanderers in the so-called invisible world have no right to come and demand entrance through your organism, merely because it is so constituted that they could enter, any more than a street crowd would have the right to force its way into your home, merely because its members were curious, hungry, or cold. Do not allow it. Permission was once given, yes; but the case was exceptional and was not based on the personal desire or curiosity of anybody--not even yourself. I doubt if permission will ever be granted again. Many things have changed since I began to write with you. At first I used your hand and arm from the outside--sometimes, as you remember, with such force as to make them lame the next day. Then, grown more familiar with the means at my disposal, I tried another method, and you noticed a change in the character of the writing. It began clumsily, with large and badly formed characters, gradually becoming clearer as my control of the instrument I was using was better established. Now, for the last few times I have used still another and a third method. I enter your mind, putting myself in absolute telepathic rapport with your mind, impressing upon your mind itself the things I wish to say. In order to write in this way, you have to make yourself utterly passive, stilling all individual thought and yielding yourself to my thought; but that is no more than you do every day in reading a fascinating book. You give your mind to the author who leads you along, rapt and passive, by means of the printed page. These experiments in perfecting a way of communication have been very interesting to me. Tell your friend that I am not a child, nor a reckless experimentalist. Not only in my last life on earth but in many former lives I have been a student of the higher science, giving myself absolutely to truth and to the quest of truth. I have never wantonly used any human being to his or her detriment, and I certainly shall not begin with you, my true friend and student. Nor shall I interfere in any way with your life, or with your studies and work. The idea is nonsensical. While I walked the world on two feet I was never considered a dangerous man. I have not changed my character merely by changing my clothes and putting on a lighter suit.