If the Warden is a dwarf...
We are the Children of the Stone. She supports us, shelters us, offers us the most priceless gifts of the earth. The worthy return to her embrace in death, becoming Ancestors. The unworthy are cast out, unable to rest, that their failings may not weaken the Stone.
We do not accept the empty promises of heaven as the wild elves do, or vie for the favor of absent gods. Instead, we follow in the footsteps of our Paragons—the greatest of our ancestors, warriors, craftsmen, leaders, the greatest examples of lives spent in service to our fellow dwarves. Our Paragons joined with the Stone in life, and now stand watch at our gate, ushering in those surfacers privileged to visit our city. We know there is no greater honor to hope for, no better reward for an exceptional life.
—As told by Shaper Czibor
If the Warden is not a dwarf...
The Chant of Light is almost never heard in the halls of Orzammar. This is hardly surprising, for, unlike the elves, who were literally abandoned by their gods, or the Tevinters, who worshipped dragons, the dwarves have no gods at all.
Even the concept of worship is foreign in Orzammar. Instead, the dwarves seem to venerate "the Stone," a name they give to the earth itself. This seems practical for a people living underground, if perhaps a bit unimaginative.
For guidance in spiritual matters, they turn to their ancestors. These ancestors, who are said to have returned to the Stone, communicate their wishes to the living via brutal trials-by-combat called Provings. The ancestors' collective wisdom is maintained by the Shaperate, which can apparently store records in lyrium itself.
Set above the ancestors, above even kings, are the Paragons—dwarves who have achieved such greatness that they are elevated almost to godhood. These are the great figures holding up the hallway that leads from the surface, the first glimpse of Orzammar that outsiders see.