in the following sentence, what does the phrasal verb ''entered upon'' mean? and what does all the pronoun ''it'' refer to? to buddhism or dummy subject?
Buddhism is a hundred times more realistic than Christianity. It has entered upon the inheritance of objectively and coolly putting problems. It came to life after several hundred years of philosophical development. The notion of “God” is done away with as soon as it appears. Prayer is out of the question. So is asceticism. No categorical imperative. No coercion at all, not even within the monastic community. Hence it also does not challenge to fight against those of a different faith. Its teaching turns against nothing so impressively as against the feeling of revengefulness, animosity and resentment.
source : Frederick Nietzche, quoted in Fundamentals of Buddhism page 3.