0 very unusual and understood or liked by only a small number of people, especially those with special knowledge -- 极不寻常的；只有少数人（尤指内行）才懂的；限于小圈子的
However, the topics dealt with are often esoteric methodological ones which will make the book heavy going for all except a few specialist demographers.
You cannot expect them to be interested in what seems to them to be your esoteric concerns.
I had assumed that the book would focus on the relatively esoteric technique of using a videolink to interview patients.
The move away from the coterie, the reliance on esoteric language and system, is also an escape from a sanctioned common sense.
This difficult topic - the esoteric, the occult, the spiritual - is respectfully placed in its context.
Contemporary practitioners have a large number of esoteric or hitherto lost texts to hand.
General views about mind and brain were not then, as they are not now, esoteric matters.
One can, furthermore, speculate as to why certain features gain popularity and why others remain esoteric.
