Isha Upanishad 91

91

amṛtamaśnuta ityāpekṣikam amṛtam /
vidyāśabdena paramātmavidyāgrahaṇe hiraṇmayenetyādinā dvāramārgādiyācanamanupapannaṃ syāt /
tasmādupāsanayā samuccayo na paramātmavijñāneneti yathāsmābhirvyākhyāta eva mantrāṇāmartha ityuparamyate //

As for the text, "He attains immortality", (Īś. 14) the immortality is a relative thing. If the knowledge of the supreme Self is understood by the word vidyā, the prayer for the path etc. in the text, "The face of the Truth (Brahman) is covered" etc. (Īś. 15) becomes irreconcilable.footnote{For there can be no going or coming for a knower of Brahman who becomes all by becoming Brahman Itself} Accordingly, the combination (of karma) is with meditation and not with the knowledge of the supreme Self. Thus we conclude by remarking that the meaning of the verse is just as we have interpreted.