If I can't say it in English, I might know a word for it in Chinese. I might wind up learning a word for it in Spanish. If I can't say it, I might be able to sing it, dance it, sign it, make it into a sign, paint it, or combine everything into a frustrated and rapturous mental explosion, trying to bridge the gap between hearts with message intact.
Sometimes my language leaves me, so the more of it I have, the more I have to fall back on when the main sets float higher than head depth.