Answer:
What does Lewis Thomas believe we should send to communicate with other beings is music and paintings.
Step-by-step explanation:
Lewis Thomas expressed his point of view about how necessary and deep is art in human interaction in his book "The music of this sphere"The need to make music, and to listen to it, is universally expressed by human beings. I cannot imagine, even in our most primitive times, the emergence of talented painters to make cave paintings without there having been, near at hand, equally creative people making a song. It is, like speech, a dominant aspect of human biology.