A lot of people claim they're members of a diaspora. But what does it mean, actually : belonging to a loose network of people with common historical links or being an active agent in a community of families calling for re-unification?
According to Advaita Vedanta, entire universe is pervaded by Brahman which is the underlying principle of consciousness or Spirit. This unified field of consciousness is indivisible and in which there is no multiplicity. The multiplicity seen in the universe is apparent. In my opinion, from this Brahman various shades of individual consciousness are created by adding impurity (known as three Gunas). So you have the animal consciousness, the bird consciousness, the fish consciousness or human consciousness. Within the human consciousness also there are fine shades of differences based on nationality, religion, race, profesion, caste, subcaste etc. Group of people belonging to the same shade of consciousness will have a tendency to remain together. You also see this with birds, fish and animals. As explained by Mary, diaspora mean scattered or separated people from their group. Such separations are usually long term and across the national boundaries. Because the separated people belong to the same shade of consciousness as the original group, there is a natural tendency for reunion. Such reunions may be periodic and temporary. But all members of the same diaspora may form a permanent sub group of a main group.
The expansionist project deployed by Greece and Rome, since they are a single people from the second century BC, has been driven by the configuration of social relations organized around the expropriation of socially produced wealth.
The complex institutional order through which Rome guarantees the production and reproduction of the aristocratic and oligarchs privileges (of this I have several things published, unfortunately only in spanish) is possible to the extent that it has created a legal framework to which the Republic (509 BC - 27 BC) and the Rome Empire (27 BC - 476 AD), going through the Renaissance (11th - 13th centuries), the "discovery" and subsumption of the New World by Europe that drives Modernity (1492 - present).
The order that is contained in this expansion project is considered social and the individual is its historical Subject. Without a hiatus, prior to the expansion of Rome and its project, our relations as humanity are mainly of a community nature. This is not a small distinction. The subject-object relationship typical of Hellenic syllogisms, articulated in terms of Subject-predicate, opens up to the world of what has been thematized and problematized as reality from the unfolding of Consciousness. Of this Hegel has enough written.
However, the problem of Modernity is precisely in this particular, since Modernity has not made a critical reflection of the type of reason it displays as true knowledge. To do so Europe would have to recognize that the centrality that has conquered are founded ir the bayonets, war horses, infectious diseases, etc., and not because its reason is superior to other types of reason.
Being and recognizing oneself as a diaspora means thinking not on the plane of consciousness but on self-consciousness. That means the passage from analysis to reflection. Doing it in this way suggests problematizing, thematizing and giving a sense of direction that is complete different, and it impacts the all meaning of what is intended to be conquered.