The Sanskrit word Kshurika means "razor", and in this Upanishad, it metaphorically signifies yoga being a tool to cut oneself away from Maya (illusion) and errors. A similar meaning to Kshurika is attributed in the Mundaka Upanishad. The text is composed in poetic prose style. It is notable for its discussion of concentration of mind during meditation, stating that mind is the Kshurika (razor) that can cut away worldly distractions and external sense objects during Dharana step of Yoga. It calls it the Dhyana-yoga. The Upanishad also includes sections on Asana (posture), Pranayama (breath exercises) and Pratyahara (withdrawal of senses from outside to inside) as a means to cleanse the body and mind. The aim of Yoga, describes the Upanishad, is to know and liberate one's soul. Yogic meditation, states the Kshurika Upanishad, is the razor that helps severe the mind from the changing reality and worldly cravings, achieve self-knowledge and liberation from Samsara (rebirth). When the knife of the fixed mind whetted by breath control, sharpened on the stone of renunciation has cut through the weave of life, adept is forever released from his bonds. Freed from all desire, he becomes immortal; delivered from temptations, having cut through the toil of existence, he is no longer in samsara. — Kshurika Upanishad, 1.24