Enlightenment from a mountain in centre of Asia (6)
I believe the answer is:
satori
'enlightenment' is the definition.
(Buddhist term)
'a mountain in centre of asia' is the wordplay.
'mountain' becomes 'tor'.
'in' indicates putting letters inside.
'centre of' means to look at the middle letters.
The middle letters of 'asia' are 'si'.
'a'+'tor'='ator'
'ator' placed into 'si' is 'SATORI'.
'from' acts as a link.
(Other definitions for satori that I've seen before include "awareness all of a sudden" , "sudden awakening" , "sudden Buddhist enlightenment" , "enlightened state" , "Sudden enlightenment (Buddhism)" .)