The Quran Lookup plugin for Obsidian allows users to easily access Quranic verses and display them within notes using a shorthand notation for surah and ayah references. It supports both exact and fuzzy search for surah names, making it easier to find and insert verses in the note. The plugin offers several customization options, including the ability to display verses in different formats like callouts, markdown tables, or simple text. It also includes an offline mode, Arabic styling options, and a wide range of translations.