Purpose vs. function

Q (From Quora): As a doctor, what did you learn in medical school that is forever etched in your brain?

A (Martin): In my 1st year of medical school, I read a footnote in ‘Samson Wright’ (the best book on physiology at the time and for many years) something that – to this day – continues to be a nostrum from the side of science but that I never fully accepted: (Referring to the workings of organs) ‘in science, we don’t talk of purpose, only of function’ — as if ‘function’ does not imply ‘purpose/intelligence’, an intelligence that is built into nature, of which the operation of the kidneys, liver, brain, etc. is proof.

From the perspective of Advaita Vedanta, purpose, function, are at most superimpositions on the one reality (Brahman, to give it a name) pertaining to the empirical realm. Cannot one affirm, though,  that intelligence is not just an anthropomorphic quality built into or added to existence, but something inherent in being/existence itself – sat, chit – despite admitting that the ultimate (Brahman) is attributeless? Then sat-chit-ananda is/are the least, or the most, that can be said about the ultimate reality.