Eventually, there comes a day when every Wanderer discovers that they have attained some deeper, significantly more profound understanding of how the Realms work, thanks to their regular exposure to Vortices. This essential knowledge is expressed in terms of rifts in time and space, from which all Vortices are born.
With this understanding comes an improved ability to open vortices successfully, as well as a greater resistance to the physical strains of the creation process.