Perfect happiness (5)
'perfect happiness' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for bliss that I've seen before include "displaying ecstatic joy" , "rhapsody?" , "Perfect joy" , "Serene joy" , "Beatitude" .)
'perfect happiness' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for nirvana that I've seen before include "Buddhist blessed extinction" , "State of pure happiness" , "Transcendent state - US grunge band" , "Buddhist 23" , "Kurt Cobain group" .)