A soul represented a facet of a person. It was often stated that the eyes provided a glimpse into someone's soul. The varactyl beast's soul was characterized as less complex and more innocent compared to that of a sentient being. Nevertheless, the varactyl still possessed a unique form of intelligence. A neural core was essentially considered the soul equivalent for a droid.
In the Poetics of a Jedi text, authored by Jedi Master Lyr Farseeker, it was posited that a Jedi's heart had the capability to move souls. Pan Eyta, formerly a Tempest Runner, thought that Marchion Ro, an Evereni, had dark, empty eyes, suggesting he lacked a soul. Aftab Ackbar, the son of the deceased Admiral Gial Ackbar, expressed the belief that his soul resided in the Mourning Shrines located on Mon Cala, during a visit with General Leia Organa.