In one tradition, the first meeting between Drogön Rechen and Düsum Khyenpa is told this way:
When Drogön Rechen met one of Karmapa’s disciples on his way to meet Karmapa, he asked the student, “Where can I find the great master? He is my teacher. If you know where I can find him, please show me the way.” The disciple replied, “Hm, I really don’t know where he is. You should ask my lama, who is his direct student.” Drogön Rechen was very happy and asked, “Where can I find your lama?” The student pointed to the mountains and answered, “He is meditating in a cave up there. Go there and ask him. Maybe he will even take you to Düsum Khyenpa.” The climb up the mountain was very strenuous and when Drogön Rechen reached the cave, he saw nothing but a pond inside. He was confused, looked around and saw only a plate and a few utensils, but no lama. Disappointed and frustrated, he turned around to leave and accidentally kicked a boulder that was lying on the ground at the entrance to the cave and rolled into the pond inside the cave.
He returned to the student in the valley and told him about his failure. The student said, “I don’t know what happened, but my teacher is up there. Give it another try. Maybe you will see him this time.” Drogön Rechen thought that perhaps he had looked in a wrong corner of the cave and climbed up the steep mountain again. When he reached the cave, he didn’t see the pond in it, but the lama, with the boulder he had accidentally kicked into the pond on his lap. Bewildered, Drogön Rechen asked him, “What happened? Are you the lama?” He answered, “Yes.” Drogön Rechen told him, “I was here just a while ago and didn’t see you.” The lama responded, “I was here, resting in meditative absorption. I imagined that my body had dissolved into water. And then you came along and threw a boulder at me. Here it is, take it.” Drogön Rechen experienced unwavering confidence and devotion and prostrated many times to the lama in the cave. He told the lama, “Please, don’t think I am arrogant. I didn’t come here to receive instructions from you. I have gone through all this troubles to ask you to tell me where I can find Düsum Khyenpa, your teacher, who is renowned and is my master, too.” The lama answered, “No problem. I will show you where he is and take you there.”
Drogön Rechen was joyous that he would be led to Düsum Khyenpa and would no longer have to search for him. Eager to depart, he turned around and saw the lama spread his arms and elevate into the sky, using the sleeves of his robe as wings. He beckoned to Drogön Rechen below and said, “What’s the matter with you? Come on. Let’s go”. Of course, Drogön Rechen could not follow the lama, who gave him a pitiful look that seemed to say: “Can’t you fly?” Drogön Rechen still had a bit to learn, so he begged the lama, “Please, let’s walk.” It didn’t take long for him to find Düsum Khyenpa, who had not yet been crowned as Karmapa. Düsum Khyenpa didn’t accept Drogön Rechen as a student right away but put him through tests first – all of which he passed.
Düsum Khyenpa then passed on all teachings he had received from his teachers to Drogön Rechen. He didn’t withhold anything and gave him all empowerments by, as written in the texts, “pouring milk into the pure crystal vase.” Drogön Rechen became Düsum Khyenpa’s main disciple and the lineage holder of the sacred Mahamudra instructions.