Namaste Starship,
thank you for the post.
this article may be of some interest:
Fundamentals of Buddhism: Rebirth
excerpt here:
Finally, I would like to distinguish rebirth from transmigration. You may have noticed that in Buddhism, we consistently speak of rebirth and not transmigration. This is because in Buddhism we do not believe in an abiding entity, in a substance that trans-migrates. We do not believe in a self that is reborn. This is why when we explain rebirth, we make use of examples which do not require the transmigration of an essence or a substance. For example, when a sprout is born from a seed, there is no substance that transmigrates. The seed and the sprout are not identical. Similarly, when we light one candle from another candle, no substance travels from one to the other, and yet the first is the cause of the second. When one billiard ball strikes another, there is a continuity, the energy and direction of the first ball is imparted to the second. It is the cause of the second billiard ball moving in a particular direction and at a particular speed. When we step twice into a river, it is not the same river and yet there is continuity, the continuity of cause and effect. So there is rebirth, but not transmigration. There is moral responsibility, but not an independent, permanent self. There is the continuity of cause and effect, but not permanence. I want to end with this point because we will be considering the example of the seed and the sprout, and the example of the flame in an oil lamp next week when we discuss dependent origination. And with the help of the teaching of dependent origination, we will understand better how dependent origination makes moral responsibility and notself compatible.
with regards to the term "enlightenment" this is an unfortunate choice of terms in the English language, in my estimation, which was chosen when Theosophy first introduced Buddhism to England and wanted to present it as a completely rational religious tradition without any sort of odd metaphyic.
in any event the term Enlightenment is used to cover two distinct aspects of consciousness in Buddha Dharma; Awakening to the Dharma and Liberation from Samsara.
the gist of your questions, however, are not related to doctrine per se but seem to be more towards the metaphysics of Buddhism concerning the nature of Awakening and what it is that Awakens in the first place.
there are several ways in which this question, generally, has been addressed from a tremendously pedantic discussion with sutta references to simple similes and analogies though i'm sure my approach will be rather lacking from the traditional ones, but there it is.
when beings start on the Buddhist path they usually have a sense of self and soul and all of this, thus the teaching of no self and no soul is used to help uproot this ingrained tanha. the culmination of the Buddhist path, in this sense, is where concepts no longer arise, thus ideas of self and no self are simply not applicable to the Awakened and Liberated being.
here are a few related Suttas:
SN 44.10: Ananda Sutta
Then the wanderer Vacchagotta went to the Blessed One and, on arrival, exchanged courteous greetings with him. After an exchange of friendly greetings & courtesies, he sat to one side. As he was sitting there he asked the Blessed One: "Now then, Venerable Gotama, is there a self?"
When this was said, the Blessed One was silent.
"Then is there no self?"
A second time, the Blessed One was silent.
Then Vacchagotta the wanderer got up from his seat and left.
Then, not long after Vacchagotta the wanderer had left, Ven. Ananda said to the Blessed One, "Why, lord, did the Blessed One not answer when asked a question by Vacchagotta the wanderer?"
"Ananda, if I — being asked by Vacchagotta the wanderer if there is a self — were to answer that there is a self, that would be conforming with those priests & contemplatives who are exponents of eternalism [the view that there is an eternal, unchanging soul]. If I — being asked by Vacchagotta the wanderer if there is no self — were to answer that there is no self, that would be conforming with those priests & contemplatives who are exponents of annihilationism [the view that death is the annihilation of consciousness]. If I — being asked by Vacchagotta the wanderer if there is a self — were to answer that there is a self, would that be in keeping with the arising of knowledge that all phenomena are not-self?"
"No, lord."
"And if I — being asked by Vacchagotta the wanderer if there is no self — were to answer that there is no self, the bewildered Vacchagotta would become even more bewildered: 'Does the self I used to have now not exist?'"
SN 35.85: Suñña Sutta
excerpt:
Then Ven. Ananda went to the Blessed One and on arrival, having bowed down to him, sat to one side. As he was sitting there he said to the Blessed One, "It is said that the world is empty, the world is empty, lord. In what respect is it said that the world is empty?"
"Insofar as it is empty of a self or of anything pertaining to a self: Thus it is said, Ananda, that the world is empty. And what is empty of a self or of anything pertaining to a self? The eye is empty of a self or of anything pertaining to a self. Forms... Eye-consciousness... Eye-contact is empty of a self or of anything pertaining to a self.
"The ear is empty...
"The nose is empty...
"The tongue is empty...
"The body is empty...
"The intellect is empty of a self or of anything pertaining to a self. Ideas... Intellect-consciousness... Intellect-contact is empty of a self or of anything pertaining to a self. Thus it is said that the world is empty."
metta,
~v