You need to be using RubyMine. Simply command-click on ANYTHING to jump to the definition, even if it's nested deep in a gem that your project uses.
RubyMine, and the "jump to definition" feature in particular, is the primary thing that enabled me to really "get" Ruby and finally understand how everything worked together.
RubyMine, and the "jump to definition" feature in particular, is the primary thing that enabled me to really "get" Ruby and finally understand how everything worked together.