With regard to mental relations every langauge is a dictionary of faded metaphors (Jean Paul, 1804)
Language is a technology, and all technologies have limitations. Language is especially limiting as there can be no words to encapsulate the real-world experience of humans. This is why impassioned love, ecstatic joy, and infuriating anger expresses itself as speechlessness, a clamoring for words that seem so inadequate. Phenomenology always transcends linguistics; our experiences transcend our vocabulary.
Whatever language we use will, as Paul says, fade over time.