In plain words
To use the power of enquiry without causing any harm, sorrow, pain, turmoil or ill to oneself or to others is Sujñāna. When a man has won a pure antaḥkaraṇa and through it has fostered the divine qualities, Satya, Ahiṃsā, forbearance and the rest, the thoughts that rise from his seat in the Ātma, all of them, are Vijñāna itself.
Being human is a mixture of sat and asat. The body is asat; the Ātma, sat. When our Satya merges in that Paramātma, the Satya of Satya comes into view. The very effort made for this is the chief duty of life; that itself is the winning of Vijñāna.
In the view of Westerners, Vijñāna is not this; the conclusions men approve on the strength of the intellect's power, those they call Vijñāna! Bhāratīya Vijñāna brings harm to no one. What teaches the broad vision of ‘Īśvara ssarva bhūtānāṃ hṛddeśerjuna tiṣṭhati’, the principle of Prema and the message of Ahiṃsā, is Bhāratīya Vijñāna. That which, without the least harm to oneself or to others, calms people and fills them with Ānanda, the Bhāratīyas call Vijñāna! For Jñāna, for Sujñāna and for Vijñāna alike, the intellect shines as the foundation. The intellect is the Supreme Court; nothing can stand against the judgement that court gives. With this in view Gāndhījī too offered the prayer himself, “Sab ko sanmati de bhagavān!”, and had that prayer spoken from the mouths of all.