Sorcerers consult their past in order to obtain a point of reference. Establishing a point of reference means getting a chance to examine intent and nothing can give sorcerers a better view of intent than examining stories of other sorcerers battling to understand the same force.
In sorcery there are abstract cores, and then, based on those abstract cores, there are scores of sorcery stories about the naguals of our lineage battling to understand the spirit.