part in its inception, and that its for-

mation is the culmination of that mighty sacrifice of the Logos in de- scending into matter, which has been called the Incarnation.
Thus the baby soul is born; and just as it is " made in the image of God" — threefold in aspect, as He is, and threefold in manifestation, as He is also — so is its method of evolution also a reflection of His descent into matter. The Divine Spark contains within it all potentiality, but it is only through long ages of evolution that
40 An Outline of Theosophy.
all its possibilities can be realized. The appointed method for the evolution of the man's latent qualities seems to be by learning to vibrate in response to im- pacts from without. But at the level where he finds himself (that of the higher mental plane) the vibrations are far too fine to awaken this re- sponse at present; he must begin with those that are coarser and stronger, and having awakened his dormant sensibil- ities by their means he will gradually grow more and more sensitive until he is capable of perfect response at all levels to all possible rates of vibration. That is the material aspect of his progress; but regarded subjectively, to be able to respond to all vibrations means to be perfect in sympathy and compassion. And that is exactly the condition of the developed man — the adept, the spiritual teacher, the Christ. It needs the development within him of all the qualities which go to make up the perfect man; and this is Ibe real work of his long life in matter,
The Constitution of Man. 41
In this chapter we have brushed the surface of many subjects of extreme importance. Those who wish to study them further will find many Theo- sophical books to help them. On the constitution of man we would refer readers to Mrs. Besant's works, Man and his Bodies, The Self and its Sheaths, and The Seven Principles of Man, and also to my own book, Man Visible and Invisible, in which will be found many coloured illustrations of the different vehicles of man as they appear to clairvoyant sight.
On the use of the inner faculties refer to Clairvoyance.
On the formation and evolution of the soul to Mrs. Besant's Birth and Evolution of the Soul, Mr. Sinnett's Growth of the Soul, and my own Christian Creed and Man, Visible and Invisible.
On the spiritual evolution of man, Mrs. Besant's In the Outer Court and The Path of Discipleship, and the con- cluding chapters of my own little book, Invisible Helpers.