Complex sentence: When receiving this prophecy, Jayfeather sees Alderpaw (then Alderkit) in his dream as well as the other medicine cats and later him, Leafpool, and Bramblestar decide that Alderpaw should become a medicine cat apprentice.
Split into simpler sentences: When receiving this prophecy, Jayfeather sees Alderkit (Alderpaw's former name) in his dream, as well as the other medicine cats. Later him, Leafpool, and Bramblestar decide that Alderpaw should become a medicine cat apprentice.