The Western Reaches has seen a high Jedi presence, given that their order was nearly destroyed not long ago.
Many of the Jedi that emerged from hiding after the fall of the Empire traveled westward. The reasons for this were varied: some desired a new start or solitude, some were drawn to the rumours of lost Jedi teachings and artifacts, some were looking for adventure, and some were looking to simply serve the New Republic.
Which of those apply to Denak, is not really known. What is known, however, is that he has great knowledge of the Force, and has been known to pass this knowledge on, to those that gain his favor.