The Outer Gods cannot pass through the firmament onto the planet's surface, but they're not the only divinity that settled onto Færrin since Aurelia I first paved the way to the Godhome. Gods that have passed through the firmament (or formed, whole-cloth, on the inside) are known as Inner Gods.
Some Inner Gods are sacred emissaries summoned by the Outer Gods to act as their eyes and ears on the planet. Others are demigods, once-mortals who some source of power has elevated to reach past their mortal coil. A small handful are even full Gods from elsewhere in the Astra that could fit through the firmament's cracks or needed no permission to pass through in the first place.
While most on Færrin pray to (and receive blessings from) the Outer Gods, many devote themselves to one of the Inner Gods instead. The variability of the kinds of blessings and the appearance of their raiments is too much to document here, but know that it's not rare to see some in a crowd with light different than the norm.