This is why monks sit in monasteries for 50+ years and nothing ever happens... there is no urgency there. Buddha has attempted to create an urgency, tried to say that if you are reincarnated again you will again encounter this existence, will again become old, sick and die. Constantly he is saying that you must free yourself in this life, that there is no reason to wait at all. In fact, much of why he is declared a nihilist is centered around his devices to create exactly this urgency. You see, to truly be ready, you must see utterly that this existence is pointless. Everything you do in the material world is irrelevant because it cannot come with you after death. Even whatsoever you assist your culture to accomplish, no society lasts that long and even if it did last this very existence is not permanent itself so eventually everything we accomplish will be irrelevant. This looks nihilistic, you have to be utterly aware of the futility of life, the futility in our current values and way of living, otherwise you will never go into the depths of religion. It is not nihilistic though, simply because what is encountered, what Buddha wishes to show you is the absolute highest experience a human can have. Nothing is more beautiful, more worthwhile, more ecstatic.