Every object is unknown only, until its right knowledge is got. Its existence, as when we say a pot exists, is the existence of the real (sat) only, that is one without a second. Therefore, it must be that 'sat' itself is the unknown, ajnAta.//
First you must understand that you are the pUrvapakshI here and not the siddhAntI because you hold mithyAjnAna is the cause of samsAra.
SiddhAntI is not a sAmkhya but is a VedAnti. He explains that the material cause of the world is ajnAta-AtmA i.e. ajnAna-adhyAsa-vishishTa-AtmA. As explained earlier in BBV 1.4.371, the kAraNatva belongs to ajnAna which is superimposed in AtmA, which is the Ashraya of ajnAna. That is how VArtikakAra is explaining here.
//If we start exploring the real nature, vastu-satatva, of an object, say a pot, then it will be decided that it is clay only, which is the cause of pot. However, although the knowledge that it is clay only, has arisen, the 'sadbuddhi', that its existence is the existence of sat only, continues. We now say 'clay exists' instead of 'pot exists', where existence is that of sat alone.//
Yes. So?
//This is how it can be decided that existence of all objects is existence of sat only, and therefore, the nature that "the object is not known" corresponds to that of sat, and not to objects like a pot, which are known to be as such by a wrong knowledge (mithyAjnana).//
Sir, the vishaya of ignorance is not pot but shuddha chaitanya which is delimited by pot. This is well accepted in siddhAnta and also in Naishkarmya Siddhi. The existence-seen-in-pot is not of pot but of आरोप्य-तादात्म्य-आपन्न-सद्रूप-अधिष्ठान. So, you are not saying something which we contradict.
//( It is not out of place here to point out that in the Bhasya for Chandogya 6.2.2, Acarya rejects the asadvAda position of the opponent, who is shunyavAdI bauddha, and establishes the SatkAryavAda of the Vedanta. Similar to the arguments there, can be found in the above also).//
Yes. But please note that Brahman per se cannot be the material cause of the world in satkAryavAda. It has to be avidyA-vishishTa-Brahman. BhAshyakAra says in unambiguous manner in MANDUkya - तस्मात्सबीजत्वाभ्युपगमेनैव सतः प्राणत्वव्यपदेशः, सर्वश्रुतिषु च कारणत्वव्यपदेशः । Wherever Brahman is said to be kAraNa, please understand, as explained by BhAshyakAra, it is not shuddha Brahman, but sabIja-Brahman.
//What has been demonstrated above is that Suresvara and Acarya have ekavAkyatA on most matters, except for minor differences in some places. One of them is that Acarya considers adhyasa or mithyAjnana as avidya, since that is which the one causes all the sorrow in human life. Suresvara considers jnAnAbhAva or ajnAna as avidya since, without jnAnAbhAva one cannot think of mithyAjnana. However both Acaryas have said that avidya is anAdi and there is no avidya other than jnAnAbhAva, mithyAjnAna and samshaya. Therefore there is no support from either Acarya for bhAvarUpa avidya.//
As demonstrated above, there is no diversion between BhAshya and VArtika.
//In the Vartika 1.4.371 quoted in OP, therefore, the upAdAna-kAraNa for the appearance of the world of duality is actually Brahman, with the support (upAshritya) of ajnAna or jnAnAbhAva, and not some bhAvarUpa avidya.//
Sir ji. Shloka says unambiguously that ajnAna is material cause. No abhAva can be material cause. Period.
//However, it need not be construed from the Vartika that actually a material cause is required, since the world of duality has been suggested to be magical in nature. The cause of a magical show is its "base of its support" (adhiSThAna), namely the magician. The cause of rope-snake is the base of its support, rope alone. It is in this sense only that Brahman is called nimitta as well as upAdAna kAraNa for the world- Brahman alone is there before 'creation', and there is no other material. (Su.Bha.1.4.23)//
Sir, this is called jabardasti. VArtika is saying “ajnAna is material cause” and you, on account of your incorrect basics, are effectively saying - there is no need of material cause - for reason a, b, c. I leave it to yourself to decide the tenability or the lack thereof of such view.
Whether it is magic or rope-snake or world, upAdAna-kAraNa is needed and is proved logically as well.
//There are two other aspects in the OP that need comments. It is said there that "Accordingly, the material cause of this magical duality is triguNAtmaka ajnAna which is neither sat nor asat. Brahman is said to be cause on account of the superimposition of that ajnAna (in Brahman)//
Really well said.
//Acarya has said in Sutra Bhashya 2.1.14 (सर्वज्ञ्यस्य ईश्वरस्य आत्मभूते इवाविद्याकल्पिते....), that Name and form which are anirvacanIya in their appearance and which are the seed form of the world, are called by names maya, shakti, and prakriti. It is well known that Vedanta uses some samkhya prakriya and accordingly prakriti or maya are triguNAtmika. But maya is avidyA-kalpita says Acarya. Therefore maya and avidya are not the same. Avidya is the occasion for the appearance of namarUpatmaka world, not-self, and the ruinous identification of the Self with it.//
Sir, bhAshya makes a conspicuous distinction between nAma-rUpa and nAma-rUpa-bIja. While nAma-rUpa-bIja is stated as the cause, nAma-rUpa is stated as kArya. This distinction is displayed in bhAshya by usage of the word “avidyA-Atmaka” for nAma-rUpa-bIja, whereas for nAma-rUpa, the usage is “avidyA-krita/kalpita/pratyupasthApita/adhyAropita”.
As we know, bhAshya uses the word “Atmaka” in the sense of “mAtra”, which is evident from the following usage: “ब्रह्मणः सदात्मकस्य” and “सन्मात्रं हि ब्रह्म”. Therefore, it is clear that avidyAtmaka means avidyA-mAtra.
The words krita/kalpita/pratyupasthApita/adhyAropita refer to the kArya.
Thus, it is concluded from the study of bhAshya that:
avidyA = avyAkrita = avyakta = MAyA = nAma-rUpa-bIja = avyAkrita-nAma-rUpa
avidyA-kArya = nAma-rUpa = vyAkrita-nAma-rUpa
It follows that MAyA is not kalpita/krita/pratyupasthApita/adhyAropita by avidyA. Instead, MAyA and avidyA are identical. The effect of avidyA/MAyA, which is nAma-rUpa, is krita/kalpita/pratyupasthApita by avidyA/MAyA.
//The second point in the OP is "Brahman is said to be cause on account of the superimposition of that ajnAna (in Brahman)". Now, where from this superimposition on Brahman happens? It must be from the avidyAbhUmi. In otherwords, avidya/adhyasa is presupposed to exist for doing this superimposition. Thus avidya is prior, pUrvasiddha, to this superimposition. Is it logical to say that the purvasiddha adhyasa has its cause as bhAvAvidya, which is avidyakalpita?//
Sir, adhyAsa is two-fold, kAraNa-adhyAsa which is anAdi avidyA-adhyAsa and kArya-adhyAsa which is sAdi-adhyAsa. The anAdi-avidyA-adhyAsa has no concept of prior, on account of it being anAdi. Further, avidyA being swa-para-nirvAhikA like bheda, there is no AtmAshraya-dosha. So, bhAvarUpA-avidyA, which is the cause of kArya-adhyAsa, is enabler of its own adhyAsa with respect to Brahman as well, just as bheda, while differentiating pot and cloth, also differentiates itself from pot and cloth. As SarvajnAtma-muni puts it up:
भेदं च भेद्यं च भिनत्ति भेदो यथैव भेदान्तरमन्तरेण ।
मोहं च कार्यं च भिनत्ति मोहस्तथैव मोहान्तरमन्तरेण ॥
Similarly, avidyA is swa-para-nirvAhikA. There is no issue.
Regards.
Sudhanshu Shekhar.