Now I am going to describe the discrimination between the Self and the not-Self most elaborately. It is what you ought to know. Listen to it properly and receive it well in your mind. (71)
Earlier the student had asked the Master about the discrimination between the Self and the not-Self (verse - 49). This verse onwards, Sankara gives an elaborate description of the various layers of matter envelopments which together constitute the not-Self, identifying with which the Self behaves as though it is limited, bound and conditioned to suffer as the samsarin.
A mere repetition that, 'viveka' means 'discrimination' between the Self and the not-Self will not in itself be very helpful to a seeker unless he is able to realize the exact meaning of the Self as contrasted with the perceived world of plurality.
Here Sankara introduces the topic which is going to start from the next verse onwards. For that he gives the introduction; atma anatma vivecanam boddhavyam. So, among the seven questions that the student has asked, the main topic is atma- anatma vivecanam.
So, discriminating between atma and anatma; matter and consciousness; this discrimination is that job. It is required because matter and consciousness are together; we are not able to separate them physically, we are not able to separate them experientially; even science has not succeeded in separating matter and consciousness.
That is why, what is the nature of consciousness is a mystery for science even now. So many theories are there.
Therefore, all our conclusions regarding consciousness are not science based; because science has not yet arrived at; it is not perception-based; perceptually we are not able to separate; they are all based on what? The scriptural data based.
And therefore Sankara says based on the upanishad, we are going to deal with the matter-consciousness separation; atma-anatma vivecanam boddhavyam; has to be known; idanim tava; right now that is going to be our task; tava, for you and tat maya samyak ucyate; that is going to be very clearly presented by me for you;
I am going to very clearly present this division between these two and srutva, may you listen very carefully; and having listened; avadharaya; may you ascertain in your mind; it should not be my knowledge; it should not be scriptural knowledge; it should be your knowledge. So avadharanam means niscayah jnanam.
The Acharya stresses the importance of this theme of discussion by saying that each student should not just listen but must come through a process of independent, discriminative self- analysis, to a firm conviction of the Truth of what is discussed hereunder.
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