The Laser beam plugin enhances your reading experience in Obsidian by introducing customizable laser lines and areas that guide your focus across text. These virtual guides help minimize distractions and improve concentration, making it easier to stay on track while reading. Users can toggle between dynamic laser lines that follow the mouse or caret, and static lines for a fixed position. The plugin supports seven colors and integrates seamlessly with all themes. On mobile devices, touch input adjusts the laser's position. Features can be activated or deactivated using the command palette or keyboard shortcuts, offering flexibility and convenience for users seeking improved reading focus.