We have been working on spear in Xingyi class and I haave to say this has got to be one of my favorite of the traditional Chinese kungfu weapons.
As the saying goes, the weapon should be trained as an extension of your body. Putting your entire body into the spear is a task, but one that appears to have great reward. I can already feel the difference in my empty hand form from the spear training.
Whenever I learn a weapon, I work hard to try and make that weapon an extension of my body. I try and connect to it in such a way that if I remove the weapon, I can still 'feel' it's presence.