In Chapter 6, Poem 74 of the Mokhtar Nameh, Attar of Nishapur explores the reciprocal and illusory relationship between the physical body (tan) and the soul (jan). He describes the body as the shadow of a pain-nurtured soul, while the soul is the accumulated treasure of the body. Furthermore, Attar posits that the physical self acts as a veil (parde), separating humans from their true spiritual essence, meaning that individuals are obscured from themselves by their own shadow.