According to Osho, to feel at a loss with words is to realize that living truth is wordless and that language is too small to carry one’s heart, so every word hesitates and fails. This loss arises from experience, not ignorance. He still speaks—using words as a necessary, imperfect bridge—so some can hear the silence within and be touched.
It means what’s most true in your heart is too big for words, so you use imperfect words to point people toward the silent feeling behind them.