To account for this spiritual experience the Buddhist writers exhaust their knowledge of words relating to the understanding, logical or otherwise. “Knowledge” (vijjā), “understanding” (pajānanā), “reason” (ñāṇa), “wisdom” (paññā), “penetration” (abhisameta), “realisation” (abhisambuddha), “perception” (sañjānanaṁ), and “insight” (dassana),[f54] are some of the terms they use. In truth as long as we confine ourselves to intellection, however deep, subtle, sublime, and enlightening, we fail to see into the gist of the matter. This is the reason why even the so-called primitive Buddhists who are by some considered positivists, rationalists, and agnostics, were obliged to assume some faculty dealing with things far above relative knowledge, things that do not appeal to our empirical ego.
The Mahayana account of Enlightenment as is found in the Lalita-vistara (Chapter on “Abhisambodhana”) is more explicit as to the kind of mental activity or wisdom which converted the Bodhisattva into the Buddha. For it was through “ekacittekshaṇa-samyukta-prajñā” that supreme perfect knowledge was realised (abhisambodha) by the Buddha. What is this Prajñā? It is the understanding of a higher order than that which is habitually exercised in acquiring relative knowledge. It is a faculty both intellectual and spiritual, through the operation of which the soul is enabled to break the fetters of intellection. The latter is always dualistic inasmuch as it is cognisant of subject and object, but in the Prajñā which is exercised “in unison with one-thought-viewing” there is no separation between knower and known, these are all viewed (ikshaṇa) in one thought (ekacitta), and enlightenment is the outcome of this. By thus specifying the operation of Prajñā, the Mahayanists have achieved an advance in making clearer the nature of sambodhi: for when the mind reverses its usual course of working and instead of dividing itself externally, goes back to its original inner abode of oneness, it begins to realise the state of “one-thought-viewing” where Ignorance ceases to scheme and the Defilements do not obtain.
Enlightenment we can thus see is an absolute state of mind in which no “discrimination” (parikalpana or vikalpa), so called, takes place, and it requires a great mental effort to realise this state of viewing all things “in one thought.” In fact our logical as well as practical consciousness is too given up to analysis and ideation; that is to say, we cut up realities into elements in order to understand them; but when they are put together to make the original whole, its elements stand out too conspicuously defined, and we do not view the whole “in one thought.” And as it is only when “one thought” is reached that we have enlightenment, an effort is to be made to go beyond our relative empirical consciousness, which attaches itself to the multitudinosity and not to the unity of things. The most important fact that lies behind the experience of Enlightenment therefore is that the Buddha made the most strenuous attempt to solve the problem of Ignorance and his utmost will-power was brought forth to bear upon a successful issue of the struggle.
We read in the Katha-Upanishad: “As rain water that has fallen on a mountain ridge runs down on all sides, thus does he who sees a difference between qualities run after them on all sides. As pure water poured into pure water remains the same, thus, O Gautama, is the self of a thinker who knows.” This pouring pure water into pure water is, as we have it here, the “viewing all qualities in one thought” which finally cuts off the hopelessly entangling logical mesh by merging all differences and likenesses into the absolute oneness of the knower (jñānin) and the known (jñeya). This, however, in our practical dualistic life, is a reversion, a twisting, and a re-adjustment.
Eckhart, the great German mystic, is singularly one with the “one-thought-viewing” of things as done by Buddhists when he expresses his view thus: “Das Auge darin ich Gott sehe, ist dasselbe Auge, darin Gott mich sieht. Mein Auge und Gottes Auge ist ein Auge und ein Gesicht und ein Erkennen und eine Liebe.”[f55] The idea of reversion is more clearly expressed in Jacob Boehme’s simile of the “umgewandtes Auge” with which God is recognised.
Enlightenment therefore must involve the will as well as the intellect. It is an act of intuition born of the will. The will wants to know itself as it is in itself, yathābhūtam dassana, free from all its cognitive conditions. The Buddha attained this end when a new insight came upon him at the end of his ever-circulatory reasoning from decay and death to Ignorance and from Ignorance to decay and death, through the twelve links of the Paṭicca-samuppāda. The Buddha had to go over the same ground again and again, because he was in an intellectual impasse through which he could not move further on. He did not repeat the process, as is originally imagined, for his own philosophical edification. The fact was that he did not know how to escape this endless rotation of ideas; at this end there was birth, there was decay and death, and at the other end there was Ignorance. The objective facts could not be denied, they boldly and uncomfortably confronted him, while Ignorance balked the progress of his cognitive faculty moving farther onward or rather inward. He was hemmed in on both sides, he did not know how to find his way out, he went first this way and then that way, forever with the same result—the utter inutility of all his mental labour. But he had an indomitable will; he wanted, with the utmost efforts of his will, to get into the very truth of the matter; he knocked and knocked until the doors of Ignorance gave way: and they burst open to a new vista never before presented to his intellectual vision. Thus he was able to exclaim to Upaka, the naked ascetic, whom he happened to meet on his way to Benares after Enlightenment:
“All-conqueror I, knower of all.
From every soil and stain released,
Renouncing all, from craving ceased,