The phrase "an essential context" is correct and usable in written English.
It can be used when discussing the importance of a specific background or setting that is necessary for understanding a situation or concept.
Example: "To fully grasp the implications of the study, it is crucial to consider an essential context of the historical events that influenced the research."
Alternatives: "a critical background" or "a vital framework."
I share that viewpoint, and not just out of self-interest, because I sincerely believe that the stories, features, leading articles, even letters, help to provide an essential context to all that is happening.
According to this road map, there is no true universalism without particularism, and vice versa, as each provides an essential context for the other.
Biochemical pathways provide an essential context for understanding comprehensive experimental data and the systematic workings of a cell.
This provides an essential context for the interpretation of gene complement studies of the pathogens.
Likewise, this framework would provide an essential context for interpreting the results and for inferring new properties that can be submitted to experimental testing.
In a book that provides essential context for understanding modern Iran, Fakhreddin Azimi traces a century of struggle for the establishment of representative government.
"The Associated Press today is deleting a 2-week-old tweet about Hillary Clinton's meetings as Cabinet secretary after concluding the tweet fell short of AP standards by omitting essential context," noted a walk-back post from September 2016.
In Part 1, Vice's own Shane Smith provides a brief history lesson and some essential context for understanding what caused Liberia's civil war and how things got so bad.
They have offered an essential molecular context for the investigation of the mechanism of uphill neurotransmitter reuptake transport enabled by the coupling with the transmembrane Na+ gradient1,10.
Citizen Hobo's sweeping retelling of American nationhood in light of enduring struggles over "home" does more than chart the change from "homelessness" to "houselessness". In its breadth and scope, the book offers nothing less than an essential new context for thinking about Americans' struggles against inequality and alienation.
Without this essential context, the jury heard a deeply distorted version of Mr. Williams's story.
