Creating a cohesive story around the phrase "index of idm full" requires a bit of creativity, especially since "idm" can stand for several things, including "Intelligent Dance Music," a genre of electronic music, or it could be interpreted in other contexts. For the sake of this exercise, let's assume "idm" refers to a fictional concept or term that could stand for a mysterious database or collection, and "index of idm full" implies a comprehensive guide or catalog to this concept.