It dosen't really, as i mentionned earlier with the link i sent
here it mentioneds how the soul is diveded into 3 parts The Ego, The Super cluseter of infons, and The dense collection of Spiritrons. The dense collection of the SPiritrons Is also often refered to as the "soul". While the two words are the exact same it is almost impossible to tell whice they are refering to without more context..... I hope that clear some stuff up, if not i will try to find some more sources from the novel as refrences instead.