Oh, Rand knows plenty about the Holocron of the Sith Lord Burke!
Lord Burke was a formidable and experienced Dark Jedi that ascended to the ranks of the Sith before their last war with the Jedi Order. There is much to learn from his Holocron about the mysteries of the Dark Side... and what was once curiosity for Master Rand is now obsession.
"Not all Jedi are meant to become gateways for the Force," Vera-Kin says. "The Force flows through us all. Some are better at harnessing it than others. You were a rare talent, Rand, to be gifted in many aspects of it. Foghren is just better with the physical side of things. Don't lose sight of how gifted he is otherwise."
The Sith Holocron is just where it has always been- the sharp little black pyramid sits upon a pedestal in a section dedicated to studies of the Dark Side and the Sith. It is a section that is normally empty unless the Council orders some research be done. These days, that is very unlikely- the Sith are long since dead and their mysteries are few.
There is a cold sensation that comes over you as you tap into the knowledge wells of the Holocron. The imprinted mind of Lord Burke is cold and dark and firm, even after all these centuries.
What do you seek, oh curious Jedi... Burke whispers into your mind. I see you could not stay away. Your Master will not be pleased!