one who bestowed a favour on me by removing the darkness of ignorance (from my heart) —

eliminating the sorrow in their mind (by vowing to act) —

having removed the restlessness —

trying to sever themselves from the terrible hell called samsāram (materialistic realm) which is like an unseverable bush —

removing —

eliminated —

eliminating —

sliced off —

all the eight obstacles be removed which includes —

 eliminating —

one who removed —