When it comes to reflecting on a particular topic, there are numerous synonyms that can be used instead of the phrase "casing reflections on". For instance, one could consider thinking about or pondering the topic, mulling it over, contemplating it, or even analyzing it. Additionally, another option is to use a more specific word, such as reflecting on the impact, implications, or consequences of the situation. Ultimately, the best synonym will depend on the context and specific circumstances, but with so many options, there's sure to be a phrase that accurately conveys the intended meaning.