Human consciousness and its purpose seems to me the growth of our frontal cortex which gives humans the ability to veto an act and think about e.g. social- design effects etc..
INHO, we must leave the vetoing free will to Benjamin Libet alike experiments.
Only by photon based observation (far and close by) and experiments, we become order in the world such as understanding of dark matter, dark energy, the multiverse big bang and a new interpretation of the second law. see anti Maxwell effect:
http://bigbang-entanglement.blogspot.nl/2016/04/anti-maxwell-effect-test-with-simple.html
see: Democratic Free Will in the Instant Entangled Multiverse.
https://www.academia.edu/5928548/Democratic_Free_Will_in_the_instant_Entangled_Multiverse
Conclusion: the purpose of the multiverse itself seems to be the growth of frontal cortexes all over the multiverse for better mutual understanding of the self and love instead of hate, but only supported by future high-tech energy-, food production and housing solutions.