Although it may seem complicated from the many posts on this site, D&D, at its core is quite simple.
First you need an altar. Then you need a small animal to sacrifice (preferably a Black Lamb). Then you need to change your name to Blackleaf (the Thief).
By doing this you will gain all manner of arcane powers which will only be effective when you play D&D with your friends under the local college sewer system.
There's more than that, of course, but this is the essence.