In this video, I demonstrate how to use the ExcaliBrain Obsidian plugin and what it can be used for. ExcaliBrain is a very powerful plugin, and it can significantly improve your Obsidian workflows. I also mention go through installing and getting started with ExcaliBrain at four different levels of uses for it: letting it infer relationships, setting explicit relationships, creating custom relationships, and finally creating semantic relationships in ExcaliBrain.