On the one hand, ontology is the study of being, and the central topic of the field is couched, variously, in terms of being, existence, "what is", and reality. What Brahman is cannot be described. I saw each day bringing me closer to a total extinction that I could hardly imagine, but which I resented with growing vehemence.
Reality can take a flying fuck at a rolling doughnut. It's able to produce prodigious free cash flow, too, making it a stock investors should look at very closely. As explained above, some philosophers draw a distinction between reality and existence.