the six kinds of perception; 1) with characteristics {mtshan bcas kyi 'du shes dang} 2) {mtshan med kyi 'du shes,} without characteristics, 3) {rgya chung ba'i 'du shes} of small extent, 4) {rgya che ba'i 'du shes}, of great extent, 5) {tsad med pa'i 'du shes}, immeasurable, 6) {ci yang med pa'i 'du shes} nothing whatever OR 1) six perceptions in listening to the Dharma: ; 1) oneself is like a sick person 2) the Dharma is like med., 3) the spiritual friend is like a doctor, 4) earnest practice is like being cured 5) the manner of the Dharma la ?? long remaining 6) tathagata as a holy being.]