20. Since (the highest Brahman) is inside (of the limiting adjuncts), it participates in their increase and decrease; owing to the appropriateness (thus resulting) of the two (things compared) it is thus (i.e. the comparison holds good).
The parallel instance (of the sun's reflection in the water) is unobjectionable, since a common feature--with reference to which alone the comparison is instituted--does exist.