So the śāstra says, tarko 'pratiṣṭhaḥ: "If you simply want to know what is self-realization, what is religion, simply by argument, logic, it is not possible." Tarko 'pratiṣṭhaḥ śrutayo vibhinnāḥ: "If you want to learn by studying scriptures, Vedic literature, you will find different scriptures." Sāma, Yajur, Ṛg, Atharva, then different Purāṇas. There are eighteen Purāṇas, Mahābhārata. That is also impossible, means you cannot understand.
Śrutayo vibhinnā nāsāv ṛṣir yasya mataṁ na bhinnam. But if you philosophize, following some philosopher... There are six kinds of philosophers in India. So philosopher means he must decry another philosopher. He must give a new theory. So nāsāv ṛṣir yasya mataṁ na bhinnam. That will also not help. Dharmasya tattvaṁ nihitaṁ guhāyām. It is very confidential subject matter.