Obsidian is knowledge management tool, you can think of it like a personal wiki. So it gives you some different types of elements that you can place inside the

Obsidian is knowledge management tool, you can think of it like a personal wiki. So it gives you some different types of elements that you can place inside the Canvas, e.g. notes, PDFs, videos, audio, and even iframe web pages. For example you can embed embed Markdown notes inside a Canvas, and embed a Canvas inside a Markdown note.