The bedu yuxin, the eye-soul, is the highest of the several souls that make up a Cashinahua person. Seated in the eyes and the heart, it is the seat of perception and true awareness, and it is what distinguishes a living human from a mere body. In dreams and in the trance induced by ayahuasca or snuff it leaves the body to travel, and the shaman follows its paths to seek out the causes of illness. At death it is this soul that undertakes the long journey to the sky-village of the Inka, in whose image it will come to dwell, provided it can pass the trials that beset the road of the dead. The eye-soul is one of a set of co-souls, distinguished by Cashinahua thought from the dream-soul and the body-shadow soul with which it shares a single living person.