The most “radical version of Non-dual teaching” goes back to Revered Gaudapada (of 5th or 6th CE) who forms a watershed mark in the Advaita tradition. With him started the human form lineage of teacher-disciple. (Before him it was a lineage of Sages preceded by the lineage of Gods – see here).
Gaudapada says that we are prisoners of an unwavering belief in cause-effect relationships. He avers that cause-effect relationships do not exist. For example, he writes:
नास्त्यसद्धेतुकमसत्सदसद्धेतुकं तथा । सच्च सद्धेतुकं नास्ति सद्धेतुकमसत्कुतः ॥ — 4.40, Gaudapada kArikA on mANDUkya Upanishad.
Meaning: The unreal cannot have the unreal as its cause. Nor can the real be produced from the unreal. The real cannot be the cause of the real. And it is much more impossible for the real to be the cause of the unreal. (Translation: Swami Nikhilananda). Continue reading →
The words, ’cause’ and ‘effect’ are only from a point of view. You say that this is the effect and that is the cause. In fact, the effect itself is the cause, being non-separate from the cause. Then again, which is cause and which is effect? When the pot is broken, it becomes clay. That means clay came from pot! This concept of cause and effect is purely a point of view. Our understanding that the cause came first and the effect came later is only a point of view. From the standpoint of Brahman, there is nothing that comes later, because Brahman itself is the effect. If at all the concept of ’cause’ and ‘effect’ is talked about, it is from the standpoint of the unmanifest and manifest conditions.
The unmanifest becomes manifest – that is called creation. Creation itself is not a proper word for us, because the word ‘creation’ is relevant only when something did not exist before, and later came into being. But it is not like that. That which is in an unmanifest, undifferentiated form, comes to be differentiated. One is in a subtle form, the other in a gross form. In a differentiated form it is called creation. In an undifferentiated form it is called dissolution. This creation is cyclic. The creation becomes unmanifest because it was manifest before. Unless it was manifest before, it cannot become unmanifest. We cannot talk about any sequence here.
Mundakopanishad (Two Volumes), Swami Dayananda, Arsha Vidya Center Research. ISBN: 8190363638. Review Link