That part is not unnatural... there are some of them that don't or can't speak, and instead communicate with emotions and feelings. But ones that start the connection, I've never heard of it like that! There are some that, when the duelist tries to make a connection, were so eager for it that their feelings came through, but humans are so fragile... a sudden, unexpected link controlled by the monster could end in death -- or worse -- for the human trying to call on them!

[He looks at the card suspiciously, warily.]

...Please, be careful. If something goes wrong the damage may very well be irreversible.