Every important skill was under the direction of kahuna.
We are instinctively wired to want a big kahuna around.
Word Origin and History for kahuna
1886, "Hawaiian priest or minister, expert or wise man," from Hawaiian, where it was applied to priests, doctors, sorcerers, and navigators. In surfer slang, for "a god of surfing," it is attested from 1962 (but big kahuna in same sense is said to date from 1950s).