Astral. Still another mechanism that we have to take into account is the astral body, often called the desire-body. As its name implies, this vehicle… - Charles Webster Leadbeater

The only thing which IS necessary is that you should do your duty. The past is past, there is no use worrying about it. Try, in bearing your karma, to develop in yourselves courage, endurance and various other good qualities and then let it go. Fulfil all the duties that are cast upon you m this strange play of life, and you will be doing all that is required of you. This, at least, is of infinite importance, since upon it depends your future. Now you have to get into that point of view. It IS not easy, because around us are people by the thousand who are taking the play seriously and thinking of it as the real life It is not so much what they say to you and do to you (although that counts) that causes the difficulty, it is the immense, the incessant pressure of public opinion.

Etheric. It is not alone through the brain to which we have hitherto been referring, however, that impressions may be received by the man. Almost exactly co-extensive with and interpenetrating its visible form is his etheric double (formerly called in theosophical literature the linga sharira), and that also has a brain which is really no less physical than the other, though composed of matter in a condition finer than the gaseous. Chapter 2

Should this little book fall into the hands of any to whom the occasional use of such terms constitutes a difficulty, I can only apologize to them and refer them for these preliminary explanations to any elementary Theosophical work, such as Mrs. Besant's Ancient Wisdom or Man and His Bodies. The truth is that the whole Theosophical system hangs together so closely, and its various parts are so interdependent, that to give a full explanation of every term used would necessitate an exhaustive treatise on Theosophy as a preface even to this short account of clairvoyance.