। ॥ २० ॥
In plain words
When my senses have gone quiet, when I no longer recognize anything, when I cannot move, when my mouth is spilling phlegm and my limbs are shaking with fear — when I am facing the road out and no one is mine — right then, quickly, compassionate Guha, be there in front of me.
Close to the Sanskrit
When my senses are utterly stilled, my awareness lost, my body without movement, my mouth spewing phlegm, my limbs trembling with fear — when I, helpless, am facing departure — at that time, swiftly, O compassionate one, O Guha, be you before me.