Indeed they can. That much I've known since childhood.

Calfkiller has spoken to me since we got here, long before I knew of him, or what little I know of his story, I kept seeing him mentally as a young man, sitting cross-legged with his eyes closed next to the spring in our cave by the river.

The funny thing is that, when I once asked his name, I literally got the mental image of a raised eyebrow, as if to say, "Do you really need to ask?" His home was along the banks of our river, and so our small cave would doubtless have been well known to him.