Experience points are the measure of your success as a MUD player.  When
you start the game you are a level 1 player with 1 experience point.  You
gain experience points by exploring and conquering the denizens of the MUD
world, though conquering the same denizens repeatedly results in diminished
returns.  You lose them if you let these same denizens conquer you.
   
   As your experience points increase, they periodically reach sufficient
levels for you to gain another level of experience.  Advancing to higher
levels brings more health points and spell energy, and gives you a chance to
practice with your guildmaster, possibly giving you entirely new skills.

See Also: Classes, Statistics, Level Restrictions

such as "spell" or "MUD Basics"