Descartes, whose ideological influence on the Scientific Revolution is hard to overestimate, was deeply committed to the introspective examination of… - B. Alan Wallace

With the advent of the Protestant Reformation and the Scientific Revolution, the gradual decline of Christian contemplative inquiry into the nature of consciousness rapidly accelerated. Given the Protestant emphasis on the Augustinian theme of the essential iniquity of the human soul, and man's utter inability to achieve salvation or know God except by faith, there was no longer any theological incentive for such inquiry. Salvation was emphatically presented as an undeserved gift from the Creator.

Alan Wallace explains the role of mind in any empirical investigation of consciousness: “The primary instrument that all scientists have used to make any type of observation is the human mind…” However, like any scientific laboratory, one has to first clean, fine-tune, and calibrate the mind: “The untrained mind, which is prone to alternating agitation and dullness, is an unreliable and inadequate instrument for observing anything. To transform it into a suitable instrument for scientific exploration, the stability and vividness of the attention must be developed to a high degree.” This is the scientific importance of yoga, meditation, kundalini, tantra and other systems of achieving higher states of mind, and more evolved states of body, which may then be used to discover deeper layer of reality: “Over the past three millennia, the Indic traditions have developed rigorous methods for refining the attention, and then applying that attention to exploring the origins, nature, and role of consciousness in the natural world. The empirical and rational investigations and discoveries by such great Indian contemplatives as Gautama the Buddha profoundly challenge many of the assumptions of the modern West, particularly those of scientific materialism.”

In short, the trajectory of Western science from the time of Copernicus to the modern day seems to have been influenced by medieval Christian cosmology. Just as hell was symbolized as being in the center of the earth, and heaven was in the outermost reaches of space, the inner, the subjective world of man was depicted as being the locus of evil, while the objective world was free of such moral contamination … And it was only in the closing years of the twentieth century that the scientific community began to regard consciousness as a legitimate subject of scientific inquiry. Why did it take psychology – which itself emerged only after many scientists felt that they had already discovered all the principal laws of the universe – a century before it began to address the nature of consciousness?