My recent thoughts on the Purelands: Where are the Buddhafields (Purelands) actually located in the cosmos?
I am still thinking about this, and not an expert. As a Bodhisattva aspirant, purelands are not something I think about usually.
What we know:
1) One interpretation of Buddhas are that they are veridical awareness (universal awareness coinciding with reality as it really is).
2) Each Buddha-field overlaps with a single Great-Trichiliocosm (an Universe).
3) There is no self, no personhood, and no way for phenomena to persist independently. Where a Buddha’s veridical awareness reach (which is everywhere), all beings and objects are that same Buddha.
4) Buddhafields and Sambhogakaya (the enjoyment body— one of the Triyaka or Three Bodies of a Buddha) are the same— they are a modus of the Dharmakaya, and interface between reality as it is, and “our world”. Whereas the Sambhogakaya refer to activities of Buddhas in this world, the Buddhafields refer to that same activity manifested as a world in which beings can be reborn into.
The implication here then, is this. If the veridical awareness of a Buddha is universal, and there is no abiding self, then that means that my efforts in manifesting a Buddhafield is in fact, de facto, the effort of the Buddha of this Trichiliocosm in manifesting a Buddhafield.
Which is to say, the Buddhafield and this world is not separate, and the Buddha manifesting the Buddhafield and all of us are not separate either.
The Buddhafield is an interface between the Dharmakaya of a Buddha and ourselves, the same way that all of theophany, visions, and interaction with Buddhas (their Sambhogakaya) is our interface with the Dharmakaya (“he who sees the dharma sees me, he who sees me sees the dharma”). The Dharmakaya is of course, representational of Dharmdhatu (the expanse of the totality of phenomena as an indivisible, pervading whole).
Which of course, returns us to the teaching that has been exhorted since the beginning; your every effort has profound enlightening effects (merits) upon your mind-stream, which is radically transformed to perceive the world as it truly is: Intrinsically Pure.
The Lankavatara Sutra says, “When the mind arises, all phenomena arise. When the mind ceases, all phenomena cease.”
When the Mind is Purified, the Buddhafield is Purified.