. . . So Hindu beliefs are correct. . . . .
The Mahabharata is an epic Hinhu poem about ten times the length of the combined Illiad and Odyssey. The Svargarohana parva is the final chapter.
It tells of the protagonist’s journey to heaven.
He is a very holy man, who was engaged, with his family in a prologued war.
He attempts along with his sibs and wife to scale the mountain to heaven.
He alone survives.
There will obviously be a number of interpretations. In short, from my Christian perspective, what follows:
He is taken to hell where he sees all his friends and family suffering, and then to heaven,
to be greeted by his enemies, there because they were killed on holy ground (they repented).
He is overwhelmed, questioning the fairness of the gods, and the value of leading a virtuous life.
Better to be in hell with those whom he loved and who loved him, to be with the virtuous and just.
Thus proving himself to be an honourable man, all is revealed to him.
He sees their suffering is temporary (purgatory)
and that ultimately, we are all brothers and sisters to be loved,
he attains the highest heaven, beyond any illusion, the fullness of Reality before him.
Just a short quote:
For the sake neither of pleasure, nor of fear, nor of cupidity should any one cast off Righteousness.
Indeed, for the sake of even life one should not cast off Righteousness;
Righteousness is eternal. Pleasure and Pain are not eternal;
Jiva is eternal. A body is not so.
I think they got it right.