The right way was to go into the highstorm with the proper attitude, singing the proper song to attract the proper spren. You bonded it in the fury of the raging storm and were reborn with a new body. People had been doing this from the arrival of the first winds. The listeners had learned that capturing spren was possible from the humans, then had figured out the process on their own. A captive spren made the transformation much more reliable. Before, there had always been an element of chance. You could go into the storm wanting to become a soldier, and come out a mate instead.
