Hair is often viewed as a mark of vanity and worldly attachment; hence, sacrificing it signifies a person's transition into a state of mourning and self-discipline. According to the Garuda Purana, this act marks the end of ‘Ashouch’ (the period of impurity) and serves as a spiritual cleansing for the family members.

Beyond the spiritual aspect, there are significant psychological and scientific reasons behind this tradition. It is believed that shaving the head helps sever the physical and emotional ties between the living and the departed soul, allowing the spirit to journey toward the afterlife without earthly distractions. Historically, this practice also ensured hygiene and protection from potential infections after visiting cremation grounds. Ultimately, tonsuring is a deeply respectful gesture performed primarily by sons to honor their parents and ensure the eternal peace of their ancestors.