You know nothing about your own Christianity, so don't talk about Buddhism. Even Jesus could not attain Nirvana.<quoted text>Buddhism is a contradiction.
Explain how life existed before:
"According to the Buddha, there were lives before birth and there will be lives after death. This is what we call re-becoming (or rebirth). We dont use the word reincarnation. 1 When one attains nirvana, there is no more re-becoming."
Have you ever studied Humanities?