Harmony and melody, hopefully this helps :]
The reason that they have done this (this is a theory created by Egyptologists) is so the dead pharaoh could symbolically climb the sides of the pyramid, make his way to the sky, and live forever. The pyramid also represented the rays of the sun.
I think he meant that if there was a God then he would not let us struggle. Yet I think he is incorrect because if God did not let us struggle then we would never learn.
Dada was an avant-grande where the art is radical and unorthodox. The movement's intent was to mock materialistic and nationalistic attitudes. It aimed to overturn bourgeois sensibilities. its purpose was to intrigue the role of artist and the purpose of the art-- asserting "Dada is anti-Dada".
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Dada's principles can and is needed to be applied in the modern world. In today's society where issues are becoming more complex, it is always good to think, evaluate concepts, challenge norms and express to inspire. Opposing can be beneficial as it can counterbalance powers in the society. The checks and balances will mold the people, the society and the quality of life of humanity.