The Barash Vow is something that was first mentioned in Charles Soule’s run of the Marvel Comics “Darth Vader“ series. It was a penance that a Jedi took, where they would disconnect from all of their duties and even life in the Jedi order in order to connect solely to the Force. In many instances, it was for Jedi who felt they had done something wrong.
“Darth Vader #2” is set very shortly after the events of “Revenge of the Sith,” where the villain is sent to find a kyber crystal for his new, Sith lightsaber. To that end, he seeks information on any Jedi that might have taken the Barash Vow and may still be out in the universe. This brings him to a Jedi named Kirak Infil’a, whose purpose in the Jedi was to fight. He had taken the Barash Vow and began a pilgrimage before Anakin Skywalker had even entered the Jedi Order. This brings Vader to confront Infil’a on the river moon of Al’doleem. He’s meditating and floating in mid-air, much the same way Torbin is in “The Acolyte.”
Ultimately, Vader is able to subdue him, take his lightsaber and forge his own red-bladed saber from its bled kyber crystal.
The vow itself was named after a Jedi named Barash Silvain, the self-declared sister of the Blade of Bardotta, Jedi Porter Engle. She was the first to take the vow and became its namesake, and more than 14,000 other Jedi would proceed to follow in her footsteps over the last few hundred years of the Jedi. According to Kristin Baver’s book, “Skywalker: A Family at War,” even Obi-Wan Kenobi took on aspects of the vow as he spent time exiled on Tatooine. Naturally, things changed when he received a distress call about the kidnapping of young Leia Organa.