Saphira

The mental contact he shared with the dragon waxed stronger each day. He found that although it did not comprehend words, he could communicate with it through images or emotions. It was an imprecise method, however, and he was often misunderstood. The range at which they could touch each other’s thoughts expanded rapidly. Soon Eragon could contact the dragon anywhere within three leagues. He often did so, and the dragon, in turn, would lightly brush against his mind. These mute conversations filled his working hours. There was always a small part of him connected to the dragon, ignored at times, but never forgotten. When he talked with people, the contact was distracting, like a fly buzzing in his ear.

Awakening page 66, Eragon