Sometimes they say: "Cook in your own juice." The value of phraseology in this case is not related to cooking. It's about something else. About what? We will take it apart today.
Origin and meaning
There is no exact data on the history of the expression. But it can be assumed that it arose as a culinary analogy. Poultry or almost any other meat can be cooked without using spices. Left to itself such a game, caught in the nearest market, will be perfectly prepared, relying only on its internal resources.
By analogy with this “cook in one’s own juice” example, the meaning of phraseology can be explained as follows: he is the one (usually a person or a group of people, less often a phenomenon or event) who lives in solitude and does not communicate with anyone.
Scholars, monks and writers
No wonder scientists and monks are on a par with writers here. These three forms of human self-expression are indispensable for privacy. True, there is one subtlety of the expression "cook in your own juice." The meaning of phraseology is painted, rather, in dark colors. When a person addresses his interlocutor in this way, the first emphasizes that the second needs to go out into the big world. It is difficult to say who is right and who is not. Someone needs to connect and exchange information with colleagues, and someone is good.

For example, monks and writers do not have to “leave the room,” but scientists. There is a separate discussion about the latter. There is a fairly living myth that the man of science is a gloomy, taciturn subject who is in the spiritual empirics and he does not care about those around him. That is, for him to boil in his own juice (the meaning of phraseology discussed above) is a natural state. But times have changed. Now gloomy scientists are an endangered species. A man of science who consciously avoids interacting with colleagues runs the risk of starving to death or living very poorly. And now nobody wants to be a beggar. True, one way or another, people still come across who prefer to cook in their own juice (the meaning of phraseological units is not a mystery), and this is encouraging. The "aristocrats of the spirit" have not yet been transferred to Russian land, however, their number is declining every year.
Another thing, writers and monks God himself ordered them to contemplate eternity and infinity, to conduct leisurely conversations with the transcendental. But writers are different. One of them manages to combine the features of a media person and a hermit. The pessimistic reader understands that this is about Victor Pelevin, the most fashionable writer of our time.
One way or another, the phrase “boil in one’s own juice”, the meaning of the expression, are examined by us, and, as it seems, accessible and simple examples are given.