DOCTOR: Come on. DOCTOR: We wouldn't be preventing the Mara's return, only postponing it. Stop him! That's close enough. The Great Crystal is absorbing the belief and creating the Mara. The crystal! To find Dojjen.
Plan: A: fruition; Q: What is the Mara's plan close to? A: the Doctor; Q: Who comes to prevent the Mara from finalizing their plan? A: Dojjen; Q: Who gave the Doctor the knowledge to stop the Mara's plan? Summary: The Mara's plan is close to fruition, the Doctor comes to prevent the Mara from finalizing the plan with the knowledge that Dojjen imparted to him.