The Law of Correspondence. In the world of rhythmic motions of vibrations and oscillations we would be more precise to use the terms Law of Harmonic Pitch, Law of Harmonic Vibrations and Law of Cycles. Then the principles of these laws, when applied to phenomena other than rhythmic motions of vibration and oscillation (sound, color, vibration and music) such as endocrine glands, would better be termed Law of Correspondence. Same principles different realms of activity and application. In other words when the first three laws are applied to anything other than sound, vibration and music it is through or because of the Law of Correspondence. The Law of Correspondence covers "As Above So Below" without going into the WHAT is above and below and the HOW and WHY this is which are covered by the three laws. Perhaps the Law of Correspondence would better be called Principle of Correspondence. The Law of Sympathy or Law of Sympathetic Association covers the same concept. [See metaphor]
Emanuel Swedenborg
"...all things of nature, and likewise of the human body, and also every single particular in them, correspond to spiritual things. Hitherto, however, it has not been known what correspondence is, although in the most ancient times this was very well known; for the science of correspondences was then the science of sciences..." Emanuel Swedenborg DSS 20.
"I have been instructed that the men of the Most Ancient Church (The Golden Age) were of a genius so heavenly that they spoke with angels of heaven, and that they were able to speak with them by means of correspondences. From this the state of their wisdom was rendered such that whatever they saw in this world they thought about not only in a natural way, but spiritually also at the same time, so that they thought unitedly with angels." Emanuel Swedenborg DSS 21.
"The whole natural world corresponds to the spiritual world, and not merely the natural world in general, but also every particular of it; and as a consequence everything in the natural world that springs from the spiritual world is called a correspondent. It must be understood that the natural world springs from and has permanent existence from the spiritual world, precisely like an effect from its effecting cause.
All that is spread out under the sun and that receives heat and light from the sun is what is called the natural world; and all things that derive their subsistence therefrom belong to that world. But the spiritual world is heaven; and all things in the heavens belong to that world.
Since man is both a heaven and a world in least form after the image of the greatest, there is in him both a spiritual and a natural world. The interior things that belong to his mind, and that have relation to understanding and will, constitute his spiritual world; while the exterior things that belong to his body, and that have relation to its senses and activities, constitute his natural world.
Consequently, everything in his natural world (that is, in his body and its senses and activities), that has its existence from his spiritual world (that is, from his mind and its understanding and will) is called a correspondent." [Emanuel Swedenborg]
See Also
As Above So Below
correspond
Correspondence
Table of Glands and Correspondences
Table of Correspondences
Principle of Correspondence
Equilibrium
Equation
Harmony
Metaphor
Syllogism
Sympathy