The creatures that touched the crystalized energy source of the planet, get connected to a knowledge network of Shattered Worlds, Giving them information about how to create Nimbus Ships, Source Beacons among other things.
Once a Spark is made the connection is lost after a week, and the world is doomed to never produce another spark.
Not all worlds followed sparks when they gave the solution on how to save the last remaining vestiges of their original world. Some sparks didn’t even survive the contact with this network or their minds shattered.