The Danda! The stick of gurus. 😜
Jokes apart, Indian education puts a great emphasis on spirituality alongwith religion, culture, moral values, traditions, and above all creates a lifetime bond between gurus and learners. Gurus are given a place much higher than the God and learners can only find the true learning or self realisation by the help from their gurus.
The only education system that still takes care of the ancient knowledge is in India.