The transmission is coming from some one, or some thing else. In the case of the gestalt pictures, dots of ink are read out from the world. Given these purely analytic distinctions, gestalts are read in, sensed dots are read out. What we read into the object of our perception appears to us at the moment like it is read out. That is the point of the gestalt pictures.
Emotion acts the same way.
Even though we, or what we have appropriated from our social experience, are influencing how we see something, we are the last to know. This is true for several reasons. Being extra-sensory, we do not observe it. Finally, because we learned it so long ago we no longer need make the effort that goes into creating our own, individual gestalts. This is why we experience emotion as separate from thought.