In the Sutra of the Forty-Two Chapters, in the chapter entitled the Unreality of All Concepts and Ideas, the Buddha said, “My doctrine is to be mindful of no-mind, to act with non-action, to speak the inexpressible, and to cultivate non-cultivation.”
The Diamond Sutra says, “I, Subhuti, do not say to myself that I excel amongst thy disciples in knowing the bliss of Enlightenment, in being perfectly content in seclusion, and in being free from all passions, for if I ever thought of myself as such then it would not be true that I escaped ego delusion.”
“A disciple should develop a mind which is in no way dependent upon sights, sounds, smells, tastes, sensory sensations or any mental conceptions. A disciple should develop a mind which does not rely on anything.”
“Therefore, Subhuti, the minds of all disciples should be purified of all thoughts that relate to seeing, hearing, tasting, smelling, touching, and discriminating. They should use their minds spontaneously and naturally, without being constrained by preconceived notions arising from the senses.”
The Heart Sutra says, “Therefore, in emptiness there are no sights, sounds, smells, tastes, sensory sensations or any mental conceptions… no consciousness, … no wisdom and no attainment.”
Hence the Buddha taught his disciples to purify their minds. When the mind is purified, it is empty of all conceptions, ideas, or such perception as a self, a being, a soul, or a universal self. This is known as one of ‘no-thought’, ‘no abidance’, ‘no-cultivation’, and ‘no attainment’.
Written by Ven. Sakya Longyen
Huayen on Indra’s Net