Picard never mentions a heaven, but neither did I. Picard believes that the self survives the demise of the flesh, this is a spiritual belief. As I said "Picard expresses a belief in a afterlife."
You see, it is not a spiritual belief [at least not in the traditional sense]. You are twisting what Picard actually says to suit your own argument. Even your mention of an 'afterlife' is steeped in religious symbolism and imagery. Here is a direct quote:
"Some see it as a changing into an indestructible form, forever unchanging; they believe that the purpose of the entire universe is to then maintain that form in an earth-like garden, which will give delight and pleasure through all eternity. On the other hand, there are those who hold to the idea of our blinking into nothingness - with all of our experiences and hopes and dreams merely a delusion.
Considering the marvelous complexity of the universe, its... clockwork perfection, its balances of this against that, matter, energy, gravitation, time, dimension - I believe that our existence must be more than either of these philosophies. That what we are goes beyond Euclidean or other practical measuring systems, and that our existence is part of a reality beyond what we understand now as reality."
There is nothing 'spiritual' or religious about what he states. He specifically discounts an Elysian fields/Heaven type of afterlife while simultaneously stating that he does not feel that we simply cease to exist either.
His final statement, that "...existence is part of a reality beyond what we understand now as reality" Is quite scientific and apt for a man like Picard. It must be borne in mind that he is a 24th century man, who has witnessed alternate realities & different dimensions while being aware of mirror universes and alternate timelines. It is not far-fetched of him to conclude that 'death' as we know it in a 3D sense may not actually be cocnlusive to this existence.
Again, that is not a spiritual belief as such. Within his universe [and there are people just now who believe in a similar scenario] it is entirely understandable why he see's this as a possibility. He makes no mention of a spirit or soul. Now I understand that you may want to retort that 'spirituality does not necessarily need a 'god' or belief in a soul' which in some ways is correct, but the word is steeped in religion and attempts to diverge the two is a modern [and controvertial] thing.
Yes. Whether a event, or a metaphor, or a parable, it is believed that it happened in some form. Why would this stop in the future?
It would be interesting if the new show revealed that different alien species also had a great flood, in some form.
I think you betray your own stance with this...absurd post. The notion of multiple alien species having great floods all [I presume] to prove the existence of one 'god' from one planet [which has dreamt up thousands] is laughable.