Sometimes when I talk with someone, usually a specific or some specific types I get this images almost. Like the the person is saying something about a drink I can visualise the cracks in the ice in the drinks. When an other person its just some word.
From my experiences its from SEE or ILE types that can communicate in this way. Perhaps SLI and IEI.
I guess it is something with the memory and how the person is connecting words and such, tone in voice. The more experience the person have the better he can communicate the full experience? Its subtle I guess.