And the subtleness of subject can tend towards a point of indefinability.

There is a shloka in the Ishopanishad, 'purnamadah purnamidam purnaata purnam uddachyate, punasya purnamaadayah purnamevavashishyate'. That is, everything has emerged from the infinite or purna and will return back to the infinite, and in being a part of the infinite, it too is infinite. There is no upper limit to gyan, it cannot be defined for what can be defined cannot be infinite. The subtleness of the subject can be explored to the point of infinity, to indefinability…