diff --git a/focus.el b/focus.el
index 66988c3..508ed23 100644
--- a/focus.el
+++ b/focus.el
@@ -23,7 +23,10 @@
 
 ;;; Commentary:
 
+;; Focus provides `focus-mode` that dims the text of surrounding paragraphs,
+;; similar to [iA Writer's](https://ia.net/writer) Focus Mode.
 ;;
+;; Enable the mode with `M-x focus-mode'.
 
 ;;; Code: