Intension

Wikipedia's definition of the word "Intension":
In linguistics, logic, philosophy, and other fields, an intension is any property or quality connoted by a word, phrase or other symbol. In case of a word, it is often implied by its definition. The term may also refer to the complete set of meanings or properties that are implied by a concept, although the term comprehension is technically more correct for this.

Intension is generally discussed with regard to extension (or denotation). Intension refers to the set of all possible things a word or phrase could describe, extension to the set of all actual things the word describes. For example, the intension of a car is the all-inclusive concept of a car, including, for example, mile-long cars made of chocolate that may not actually exist. But the extension of 'car' is all actual instances of cars (past, present, and future), which will amount to millions or billions of cars, but probably does not include any mile-long cars made of chocolate.
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This picture represents how I see a thought progressing into a plan or idea.

Drawn freehand with the Mighty Sharpie.

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Or maybe it's just the view out of the inside of an average human head when you pull your consciousness back just a few inches.

© Stephen Levi Guptill