अम्बुवदग्रहणात् तु न तथात्वम् ॥ १९ ॥
ambuvadagrahaṇāt tu na tathātvam || 19 ||
ambuvat—Like water; agrahaṇāt—not being experienced; tu—but; na—no; tathātvam—similarity.
19. But (there is) no similarity (in the case of Brahman, any second thing) not being experienced like water.
An objection is raised that the comparison of the last Sutra is not correct. In the case of the sun, which has a form, water, which is different and at a distance from it, catches its image; but Brahman is formless and all-pervading, and there can be nothing else different and at a distance from It, to serve as an Upadhi, that can catch Its reflection. So the comparison is defective.