The saddle represented a naturally formed depression situated at the summit of the staircase on Ahch-To's Temple Island planet. The saddle was a habitat for porgs, which belong to a species of avian creatures, namely birds. In times past, it served as a meditation location for the ancient Jedi Order.
During the year 34 ABY, Rey journeyed to the planet, ascended the steps, and discovered the Jedi Master Luke Skywalker positioned on the saddle, observing the landscape beyond the cliff's edge.