An Esoteric Cosmology. Lecture 9 of 18.
How are we to conceive of the astral world? The three different worlds of which occultism speaks are as follows:
(2) The astral world (Purgatory).
(3) The spiritual world, or Devachan in Sanskrit terminology (The Christian Heaven).
“It is useless to attempt to express the nature of a thing abstractly. Effects we can perceive, and a complete history of those effects would, in fact, sufficiently define the nature of the thing itself. We should try in vain to describe a man's character, but let his acts be collected and an idea of the character will be presented to us.
“The colors are acts of light — its active and passive modifications: thus considered, we may expect from them some explanation respecting light itself. Colors and light, it is true, stand in the most intimate relation to each other, but we should think of both as belonging to Nature as a whole, for it is Nature as a whole which manifests itself by their means in an especial manner to the sense of sight.
“The completeness of Nature displays itself to another sense in a similar way. Let the eye be closed, let the sense of hearing be excited, and from the lightest breath to the wildest din, from the simplest sound to the highest harmony, from the most vehement and impassioned cry to the gentlest word of reason, still it is Nature that speaks and manifests her presence, her power, her pervading life, and the vastness of her relations; so that a blind man to whom the infinite visible is denied can still comprehend an infinite vitality by means of another organ.
“And thus as we descend the scale of being, Nature speaks to the senses — to known, misunderstood, and unknown senses: so speaks she with herself and to us in a thousand modes. To the attentive observer who is nowhere dead nor silent, she has even a secret agent in inflexible matter, in a metal, the smallest portions of which tell us what is passing in the entire mass.” [Theory of Colors. Preface.]