In many Indian religions, nirvana refers to a state of liberation. Confucius inspired many of those ideologies even though he was BC.
Mohandas Gandhi was a true advocate for peace and nonviolence, who also was assassinated because of this, and raised Hindu.
Kurt Cobain was the frontman for a band that shared the same name, Nirvana. Though they had much success especially with songs like Smells LIke Teen Spirit, he shot himself in the head in 1994.
I used Karma, another Indian principle, to describe the irony in this. And a play on spirit where Cobain referred to emotion and I refer to a posthumous soul