The Lance is a horseman's weapon. It was very long and heavy. This seams like simplified crap but there isn't much else. The Techniques are simple and often require a horse to be effective.
All the lances are considered the same. Snake tongue lange, crescent lance, two edged three pointed lance, and many others are simply a long blade attatched to a longer handle. The Lance tended to be over ten feet long. In some references the lance can be over twenty feet long. Obviously not a weapon to be carried through the house.
Entirely used in war, its practice was sometimes used for internal development. The internal theory was that the Chi would build up pressure until it balanced the weapon. At this point the weapon would be easy to wield, alternatly it can be used as a strength and endurance training aid. Unless you have a trained warhorse this about raps the Lance up.