No original research
Wikipedia is not a place to publish your own conclusions or theories about a topic. On Wikipedia, that’s considered “original research.”
“No original research” means your writing for Wikipedia will summarize what other people have said about a topic you’re interested in, so that a Wikipedia reader can get an overview of the current thoughts and understanding of that topic.
While it may be tempting to connect ideas in a Wikipedia article, you shouldn’t make those connections unless someone else has made them in a published, reliable source.