Another good point - without guidelines, how would one know what perfection requires and toward what they should be striving? Do they just stumble upon perfection by accident?
There have been many Buddhas. Siddhartha Gautama Sakya, the historical Buddha, was merely the latest of a long line. Each Buddha rediscovers the path and preaches it. Others follow that path, using the Buddha’s advice. Eventually the Buddhist religion will disappear until a new Buddha rediscovers it. The next Buddha will be Maitreya, the future Buddha.
That would mean perfection is fluid, and changes respectively with each individual.
Each individual finds their own path. Each of us is different, so our individual paths differ. There are a wide range of options in Buddhism, from the cut-down versions, like Zen or Theravada, to the ceremonial versions like Shingon or Tibetan. You can have no philosophy, as with Pure Land, or overdose on it with the Madhyamika. All those paths work for different people. There are many different paths up the mountain, yet all those paths lead to the same high peak.
And, if Siddhartha reached enlightment and was then able to glean what was necessary for others to reach it and then leave instructions for the rest of us, this must mean that Nirvana is not a permanent state, and that he was able to leave Nirvana in order to write or preach his advice.
The Buddha attained nirvana at age 35. He died at age 80. He was simultaneously in the world and in nirvana for 45 years. Nirvana is not separate from this world, it is part of this world:
Samsara does not have the slightest distinction from nirvana.
Nirvana does not have the slightest distinction from samsara.
Whatever is the end of nirvana, that is the end of samsara.
There is not even a very subtle slight distinction between the two.
- Nagarjuna, Mulamadhyamakakarika 25:19-20
It is an error to think of nirvana as being like one of the heavens, something separate from the world that you only attain after death. Enlightenment is attained while still living in the same imperfect world as everyone else. Buddhism has heavens, and hells, but none of them are nirvana.
rossum