大徹大悟

to achieve supreme enlightenment or nirvana (Buddhism)

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

thorough / penetrating / to pervade / to pass through

Dawu county in Xiaogan 孝感[Xiao4 gan3], Hubei

to comprehend / to apprehend / to become aware