Whats with the family Neo meets in the train station?
This is a fairly involved subplot that has major impact on the outcome of the movie, and the future of Zion and the Matrix. Rama-Kandra, the father, created a program with his wife. The program is Sati, their daughter. Because Sati was created without purpose, they’re trying to smuggle her into the Matrix before she is deleted by the system. For more, see Meaning.