How does Rails routes.draw work behind the scenes?

How does Rails routes.draw work behind the scenes?

References

Reference NO 1

http://stackoverflow.com/questions/13649240/how-does-rails-routes-draw-work-behind-the-scenes

Reference NO 2

http://railscasts.com/episodes/231-routing-walkthrough?view=asciicast

Reference NO 3

http://weblog.jamisbuck.org/2006/10/2/under-the-hood-rails-routing-dsl

Reference NO 4

http://asciicasts.com/episodes/222-rack-in-rails-3

Reference NO 5

http://www.devmynd.com/blog/2013-3-rails-ember-js

Reference NO 6

http://createdbypete.com/articles/working-with-nested-forms-and-a-many-to-many-association-in-rails-4/

Reference NO 7

http://yehudakatz.com/tags/rails-3/

Reference NO 8

http://www.sitepoint.com/getting-started-with-mvc/