I have always said within myself that "I have been lead by the guidance of my Soul" therefore to include our innate nature in a text that talks directly about what we are in Truth (a soul), only makes sense. It was included in the ORIGINAL dictation of Jesus through Helen, so why take it out to begin with?
In the FIP(Foundation for Inner Peace) edition of A Course in Miracles, Ken Wapnick states that Soul was taken out because of its "controversial nature", which to me, is nothing more than an opinion. If we were to look at what IS controversial, in all honesty, the whole of ACIM would be controversial, and not just the reference to us as SOULS! In the UR Text, which is the ORIGINAL transcription of a Course in Miracles; Soul is referenced repeatedly as an intregal part of Jesus' message to us. Sparkly simply references the UR Text, and restores ACIM back to the way Jesus intended it to be through adding Soul back in, and fixing many other errors that were made in the first editing process. More details on this can be found here.
Therefore in recognition of what is True in all things, I am eternally grateful to everyone who took part in the release of ACIM to the world....every part of it!
Here is a resource, the link for the Soul that is found throughout the UR text ACIM. Enjoy!