O happy dagger! This is thy sheath; there rust, and let me die.

[SunnyD]

Seriously? WTF is so happy about it?

 

[moonbit]

happy = lucky in the archaic context

 

[SunnyD]

Originally posted by: moonbit
happy = lucky in the archaic context

Death isn't really "lucky" either, at least not in my world.

 

[MotF Bane]

Juliet from Romeo and Juliet, right? She wants to kill herself because Romeo is dead, so she is happy to have the dagger available, and happy to die. Thy sheath is her body, there rust for the dagger to stay there and the let me die part is rather obvious.