The title of the 8th section of IOL Tib J 709 reads: mkhan po 'gal na yas bas ganta gi snying po bshad pa', but I think I can try to correct the title part of it to Bsam gtan gyi snying po bshad pa [Explaining the Heart of Chan]. Perhaps 'Gal na ya is a muddled form of 'Gal ya na (Maudgalyāyana), I don't know.