Do I need to use 'the' instead of 'a' here? Are the punctuation marks correct?
She gave him a reason. A reason, that was sufficient to burst a passion inside him so that he could reveal all his feelings.
I was searching for some essay conclusions examples on the Internet and found the following:
My attitudes have greatly shaped after this study. I have realized the ways meat impact our life and health. Meatless meals might improve the health conditions of patients suffering from various disorders, and the observed study proves it.
I wanted to use the first phrase in my own essay. I wonder if it is correct or not. Personally, I find it a bit weird. But maybe it is not so?