Sūta said: Tapoyajña (sacrifice in the form of austerity) is superior to thousands of Karmayajñas (sacrifice in the form of holy rites). Japayajña (sacrifice in the form of Japa) is superior to thousands of Tapoyajñas. Dhyānayajña (sacrifice in the form of meditation) is superior to thousands of Japayajñas. There is nothing greater than Dhyānayajña. Dhyāna (meditation) is a means of perfect knowledge.