“To Remain Still and then Suddenly Break and Destroy” or “Holding Ground”
Kururunfa is one of the old Kung Fu kata that were taught to Higaonna Sensei, and which were incorporated into the Okinawan karate systems.
Kyoshi currently does not have a written sequence, although he gives the sequence on the video – both spoken and in subtitles.
Another excellent resource for this kata is the video of Morio Higaonna Sensei demonstrating Kururunfa. Well worth a look.