To create an Instagram Reel summarizing a 1000-word post, one must plan the content topic, write the post, and create visual elements like images and videos to complement the text. Then key phrases are turned into visually appealing text overlays to be combined with the visuals in the Reel editor, applying effects and transitions while pacing the content segments to fit within time constraints. Background music or narration can be added before publishing the Reel and engaging with viewers.