People have come before Curufin, and there is some form of charades the statue has found in initiating conversation without words. A pat on Curufin's shoulder in greeting by an invisible hand, a slight ticklish sensation to it.

Which continues on, a feeling of someone reaching out by the contact of Curufin's hand on its arm. With an unfortunate prickling to his energy, it asks - though it can only doing so through implication, feeling, than with actual words:

Connect. Us? Warning, pain.

They want to connect, but there is the threat of discomfort, some pain.