Below is the only known reference to the Law of Isolation or Limitation in the writings of Alice A. Bailey (AAB) and Djwhal Khul (DK). Links on these pages of the Laws of Alice A. Bailey are to the online books at the Lucis Trust website.
For a discussion of what AAB means by a “law” please see Alice A. Bailey – What is a Law?
Few of Those who form the Council Chamber at Shamballa can find the needed or adequate substance by means of which to appear; They cannot take a dense physical body, and have to be content with an etheric vehicle. There are therefore three types of life, affecting the dense appearance of a human being during his restricted manifestation or incarnation:
1. The life of the spiritual man himself, transmitted from the Monad, via the soul for the greater part of manifested existence.
2. The life of that sumtotal which is the elemental life of the fourth kingdom in nature, the human; this life is still an aspect (under the Law of Isolation or Limitation) of the life of the spirit of the earth.
3. The sumtotal of the life which is innate in atomic substance itself—the substance out of which all forms are made. This is the life of the spirit of the earth.
In A Treatise on White Magic AAB also mentions a “law of synthetic limitation“:
“Let these three laws hold sway, the law of synthetic limitation, of vibratory interplay, and of active precipitation. The one concerns the life, the second concerns the building, and the third produces manifested existence.”
It is not clear if this law of synthetic limitation is related to the Law of Isolation or Limitation.
You are welcome to post your comments and understanding of this law.