Qalasian religion is very closely associated with that of Ancient Egypt, probably coming from a common origin, but where Egypt was unified and ruled as a nation, Kun Qalasi was not part of if, and as such, its religious practices were able to diverge into a form of their own.
Most gods of Egypt can be found in Qalasian religion. Their roles are also pretty much unchanged from those they perform in Egypt. However, the foremost deity for the Qalaisans is the god Ra, a creator god, king of the gods, creator of most things seen and unseen, often referred to simply as the Sun God. He is said to create the spirit that inhabits the body of the Golden-Eyed Fennecs and is acknowledged as their father, regardless of whom the biological father might be.
Another extremely important deity for the Qalasians is Ma'at; more so, what Ma'at represents: Truth, balance, order, harmony, law, morality, and justice. Their society is (in theory) governed by those principles.
Qalasians are by default polytheists, and very tolerant of other religious practices so long as they don't disturb the peace and order.
The foremost aspect where Qalasian religious practices differ from the Egyptians is in the way they treat their dead: Qalasians don't normally build tombs nor do they concern themselves with preservation of the bodies of the dead. Instead, they perform a ritual they call Conversion, where the bodies of the dead are turned into small crystals of pure tass. That crystal is then either given to the deceased's next-of-kin, relatives, or appointed recipient, or kept in the vaults of the Priests of the Sun.
Those for whom such sentimental considerations aren't necessary, will still be Converted into tass, but that is likely going to end up used to power something or another as Qalasians normally don't possess mana of their own so they depend on tass for casting magic.
It is not unusual for people to wear the Converted tass of their loved ones as jewelry, or to have them adorn statues representing the deceased.
The Priests of the Sun, together with the King, are in charge of the official religious practices, which may include religious feasts, the Conversion, and various other ceremonies. One of the most important is the Greeting of the Sun, performed every morning during sunrise. In this ceremony the High Priestess and participating priests literally greet the sun as it rises in the East, and then read the List of Souls (sometimes referred to as Book of Souls as well).
The List of Souls is a record of names of Qalasians and other relevant people who have died in a specific period of time (usually the present year), but may include long-departed names as well. This is done as the Qalasians version of how to provide sustenance to the spirits of the dead. The Egyptians build tombs with spells written all over the walls and fill them with treasures for the dead in the afterlife. Qalasians provide sustenance to the spirits of the dead by uttering their names. It is an offshoot from the Egyptian concept that speaking of the dead makes them live again. The spirits of the dead need to be given strength for their journey through the Duat (the underworld), until they reach the Scales of Justice, where their hearts will be weighted against the Feather of Ma'at; if they are found to be pure and light of heart, they are given passage into the Aaru (the Field of Reeds - paradise) where they will exist in eternal bliss. If they are found to be heavy of heart, their soul is devoured by Ammit (opinions diverge on what happens then, some say you exist in eternal torment, others say that's the end of existence for you, but it's bad either way!). Because it's often not known how long it may take a spirit to reach the Scales, their names are uttered for an entire year during the Greeting of the Sun.
The priests may also perform blessings, purification, and exorcisms. Those who are true to their faith are usually well-equipped to dealing with negative entities such as demons, beings that the Qalasians have very little tolerance for, due to their chaotic nature which disrupts Ma'at.
Although only the king is said to communicate directly with the Sun God, priests due to their role can be approached for a boost on one's prayers, although as always with gods one never knows whether they will be answered or not. Gods can be fickle beings!
Transcript from the Greeting the Sun daily morning ritual: The participating priests and acolytes first purify themselves through ritual bathing/cleansing on the Royal Pool and then gather at the top of the city just before sunrise.
From there, one of the priests takes place facing East, and as the light of the sun grows brighter, chants the following hymn to the sun:
BEHOLD, the scribe of the holy offerings of all the gods, he says: Homage to you, who have come as Khepe-Ra, the creator of the gods! You are seated on your throne, you rise up in the sky, illumining your mother Nut, you are seated on your throne as the king of the gods!
Nut stretches out her hand and performs an act of homage to you! The domain of Manu receives you with satisfaction. The goddess Ma'at embraces you at the two seasons of the day. May Ra give glory, and power, and truth-speaking, and the appearance as a living soul so that he may gaze on Heru-Khuti, to the Ka of all of those who speak truth before Osiris!
Hail, all you gods of the house of the soul, who weigh Heaven and Earth in balance, and who give celestial food to the gods!
Hail Tatun, you creator of mortals and of the companies of the gods of the South and the North, of the West and the East, ascribe praise to Ra, the lord of Heavens, the king of life, strength, and health, maker of the gods!
Give thanks to him in his beneficent form which is enthroned in the Atett boat, beings celestial praise you, terrestrial beings praise you! Your enemy the serpent has been given over to the fire!
The serpent-fiend Sebau has fallen headlong, his forelegs are bound in chains, and his hind legs has Ra carried away from him. The sons of revolt shell never more rise up! The house of the Aged One keeps festival, and the voices of those who make merry are in the great place. The gods rejoice when they see Ra crowned on his throne, and when his beams flood the world with light!
The priests are supposed to have good timing with their prayers as at this point the sun should break above the ground, and then they continue...
The majesty of this holy god sets out on his journey, and he goes onwards 'till he reaches the land of Manu; the Earth becomes light at his birth each day; he proceeds 'till he reaches the place where he was yesterday.
Be at peace with us. Let us gaze on your beauties. Let us journey above the Earth. Let us slit asunder the serpent-fiend Sebau. Let us destroy Aepep at the moment of his greatest power. Let us behold the coming of new life this day.
Let us behold Horus when he's at the rudder of the Sun-Barge, with Thoth and Ma'at on each side of him. Let us lay hold of the tow-rope of the Sektet boat, and the rope at the stern of the Matett boat. Let Ra grant us a view of the Sun Disk and a sight of Ah ((the moon)), unfailing each day. Let our Ba-soul come forth to walk about here and there and wherever it pleases. Let our names be called out, let them be found inscribed on the tablet which records the names of those who are to receive offerings. Let meals from the sepulchral offerings be given to those who are in the Duat, in the presence of Osiris as to those who are in the following of Horus. Let there be prepared for us a seat in the boat of the sun on the day whereon the god sails. Let us be received in the presence of Osiris in the land of truth-speaking - the Ka of those whose names we speak.
A priest would then read from the Book of Souls, the list of those who died that year, as their belief says that speaking the names of the dead helps give them strength for their journey through the underworld until they reach the Scales where their heart is weighted against the Feather of Ma'at and they are either given entrance into the Field of Reeds (paradise) or devoured by Ammit.
That concludes the ritual.