Intended Meaning: Suppose I am feeling upset. There is a clear cause for this feeling, but I also know that if I wasn't also in a particular circumstance, I would be better equipped to temper my unhappiness. Therefore, the circumstance only changes the magnitude of how upset I feel, but it does not explain the cause of the feeling.
Connotation: Positive. I'm trying to suggest that the circumstance made visible the cause, which might have been suppressed otherwise. The function of making the cause visible is useful.
Context: In a discussion, someone tried to discount how I felt because of this circumstance: "You only feel upset because X was happening at the same time." I'm trying to say that X only helped me realize some underlying discontent.
Non-example: A word like exacerbate does not include the "making visible" aspect that I'm looking for.
What is a good word to describe the circumstance? I will accept an answer which can describe the role of amplifying in order to make perceptible.