The Celestials, also known as the Architects, were an ancient civilization who were present long before the dawn of the Galactic community. Whatever was known of the Celestials was the subject of xenoarchaeology. It was theorized by both Jedi and Sith alike that the balance between the light and dark sides of the Force was actually under the guidance of the Celestials.
Almost nothing was known of the mysterious race of aliens who were also known as the Architects due to the permanence of their cosmological constructions. They were considered one of the earliest and most potent cultures of their time that were identified by the colossal objects they had left behind. Their identities were considered largely a mystery due to lack of information on them. Evidence of their works led many to determine that the region of space was once visited by these stunningly powerful alien architects. They were noted for being an advanced race that ruled the galaxy with these beings holding technology that allowed them to construct or even realign solar systems. A number of species were known to have coexisted with this ancient race as far back as 100,000 BBY.
These were beings of astonishingly power and held a malleable form. One theory held that they were a group of discorporate entities who had perhaps merged themselves with the Force thousands of generations earlier and continued to guide the fate of the galaxy ever since. Those that believed in this view held that the Celestials were a higher order of intermediaries whose powers were beyond the understanding of mortal beings. The Killiks claimed that the Celestials were in the Force and that the Force users known as the Ones were what Celestials became in time. The Thuruht hive were unsure on whether the Celestials were the kind of beings to hold a plan. Ultimately, they believed that the Force was the dominion of the Celestials and when their power was usurped then the Bringer of Chaos emerged. It was claimed that no objects were more spectacular than those created by the Celestials. They were known for their demonstrable and nearly immeasurable level of power. Their technology was said to had been able to move entire star systems with the Rakata's being almost on par with it.