Life and why we (mankind ) exist I'm stuck on this for now ...does the Buddha say anything about why we exist ( mankind ? I know how much he stated about reasons why we should not exist such as Nirvana being the highest goal to escape from the karma bond!! Just like to know for balance of reality.
The main point of paṭiccasamuppāda pretty much comes down to: "if this exists, that exists; if this ceases to exist, that also ceases to exist". And so the reason to our existence, not just mankind but pretty much all conditioned phenomena is that the condition or the root cause for that existence still exists. So in our particular case, the reason we, mankind, still exists is because the conditions to our existence, the 3 unwholesome roots of greed, hatred, and ignorance, still exist. And as long as one has not completely uprooted them, s/he will continue to wander in Samsara's 6 realms of existence.