Silsta

Silsta is the maiden in ghostly silks, she who walks the darkest places with a lantern to guide the lost and the damned to Salvation. She is starlight and she is safety. She is the invisible counterpart to The Masked One - while he oversees ghosts, she oversees all other dead. Silsta is one of the three "Great Siblings" that rule the Uvaran pantheon, along with the Gods Kragen and Ustav - though Silsta is typically not given as much worship as those other two.
Silsta is worshipped as a guide, mediator, healer, and quiet protector; she is invoked when a person is mourning a loss, seeks a moment of rest, hopes to cure an illness, or faces a decision they struggle to make. Silsta is only sometimes worshipped by herself, though - she is a goddess almost always paired with another divine figure. Silsta guides the dead through rebirth and the living through redemption and purification, but Ustav is typically also involved in those rituals. Silsta as a guide to scholars is often paired with Ertinar; Silsta as a protector is often paired with Kragen (if the protectee is an adult) or Varsha (if the protectee is a child). Most Uvaran commoners interact with Silsta in the contexts of illness and death. 
As a note, Silsta is not a real entity in this world. She is a character in Uvaran imagination, refined by centuries of meditation, politics, and cultural exchange. This does not make her unimportant. Emesh often empowers paladins in her name and falsifies evidence of her existence, as part of his campaign of cultural plurality. Also, Silsta's close links to Haru and the Masked One legitimize her as a kind of vector for understanding those two.

Silsta's Spiritual Role

Silsta might be understood best by modern readers as "the Holy Ghost", as she represents the invisible forces of fate and the quiet voice of the mortal conscience. Silsta is not depicted as grandiose in her power, and yet she walks the paths of life and death that even Gods may not travel. In relation to Kragen, Ustav, and other Gods, Silsta plays the role of both messenger for them (subordinate) and advisor/guide to them (dominant). When paired with another god, Silsta emphasizes their materiality and personhood with her own ethereal and distant nature. With her lantern, she guides Ustav out of death and into life every spring. With her counsel, she guides Kragen from tragedy to redemption. Silsta is the animating connective tissue of the pantheon, who binds the Gods to one another like a manifestation of their bonds of kinship. 
When paired with the God of Creation and Existence (Old Man Vanoke), Silsta is the manifestation of divine benevolence that parses the cold and alien forces of reality. From Vanoke's primeval connection, Silsta draws forth the basic stuff of reality (described by scholars and alchemists as 'Ganshek', or 'the All-Base'). She makes the wheel of time her spinning wheel with which she processes the Ganshek into the thread of Fate, the stuff of essential prophecy. From a theological standpoint, Silsta could be argued to be the truest Divine Will and a more powerful and essential God than Ustav himself! Of course, if Silsta writes the story of the world, she must exclude herself from it; she and Ustav are fundamentally the same person, but he is the shadow of her in reality just as she is his shadow out of reality. This all relates to how stars are seen in Uvaran culture: stars remain the same in Chaos Wastes as they do elsewhere - they are beyond it all, fixed in cycles that are difficult to understand but comforting in their consistency. 
On a personal spiritual level, Silsta helps the dead get to Paradise and ensures that the prophecy of the Irunek comes to pass. 

Silsta the Character

Silsta is not a God with a great deal of direct agency in Uvaran myths. Many stories consign her to the role of the "good voice", a fusion of the will of the Gods and one's personal conscience - Uvaran tragedies typically hinge on the moment her voice is ignored, and Uvaran redemptions hinge on her call through the darkness. Uvaran media understands this; many plays will have Silsta as a character act as the narrator or voice of reason to the audience.
Silsta, when she does enter the narrative as her own person, tends to play the part of the thoughtful, quiet, and dutiful daughter. She cares for her grandfather, she is always present for her siblings, and she looks after mortals; she is the ultimate family-oriented homebody. Stories that place her in them typically have some riff on that role. Commonly, it is uncritical praise of her tireless devotion and self-sacrifice of her joy in life for her family. Sometimes, it is a little more biting - one of the Hundred Stories of Uvaran orthodoxy hints at her being a tragic figure that has extinguished her love for herself to try and become perfect for her family, and that this has ironically led to her two children becoming sad and wounded themselves (despite her best efforts). Most Uvarans don't see this interpretation of her, though; Silsta isn't given the center role of that story and therefore is often simplified and made a background character in the one big story that gives her flaws and nuance. More negative characterizations of Silsta have certainly made it to some corners of mainstream thought, though - the small bits and pieces of 'unhappy Silsta' resonate with Uvarans who feel trapped in similar roles, so they seek out those bits and tell their own stories. 
As a mother, Silsta has three children: Hadash, Haru, and Dulnek. Hadash is the more powerful of the three - the God of Crafts, Animals, and Hearth, charioteer of the sun - and yet he is perpetually afraid. Dulnek is  The Masked One, and they are not always cast as Silsta's biological child - a prominent story in the Book of Hope describes Dulnek as Hadash's mortal husband who leaned too far out of the sun-chariot in an act of love-as-hubris. Sometimes, Dulnek is Silsta's biological child though, the loner renegade who fled the household to become a God of Outcasts. Some communities just marry the two stories by having Dulnek lose his divine powers, shapeshift into a mortal, fall in love with Hadash as a mortal, and then recover his Godhood in death. Mainstream Hainish dogma doesn't go for this version, despite its rural popularity. 
Haru, meanwhile, is an actual immortal demigod people can talk with. Haru also talks a lot about Halcyon - Fate Personified - which indicates that Halcyon is likely Silsta's enigmatic partner by which she produced her children. 
Silsta has cult centers in the Kingdom of Gennorholn and at the great Temple of Silsta in Hain (Feltarnok). 
Silsta is often portrayed as a woman with eyes like stars, wrapped in a cloak of night.

Divine Domains

Silsta's major domains are Healing, the Dead, and the Night.
Silsta's minor domains are: Rest, Prophecy, Guidance, Medicine, Chemistry and Herbalism, Cats, Contemplation, Storytelling, Solars, Weaving, and Spinning

Divine Symbols & Sigils

The String (of Fate) and the Lantern (or candle) paired together is Silsta's most iconic symbol.

Holidays

Silsta has one major holiday devoted to her: Silstren, on Herbez (November) 26th. She is involved in a minor way in several other holidays, but rarely in a major way.

Divine Classification

Goddess

Religions

• Uvara

Church/Cult

Uvara