The bodhisattva, the great being, having practiced compassion, sympathy, and joy, attains the stage of the best-loved only son. For example, the father and mother greatly rejoice as they see their son at peace. The same is the case with the bodhisattva who abides in this stage: he sees all beings just as the parents see their only son. Seeing him practicing good, he greatly rejoices. So we call this stage the best-loved.
For example, the father and mother are worried at heart as they see their son ill. Commiseration poisons their heart; the mind cannot part with the illness. So it is with the bodhisattva, the great being, who abides in this stage. As he sees beings bound up in the illness of illusion, his heart aches. He is worried as in the case of an only son. Blood comes out from all pores of the skin. That is why we call this stage as that of an only son.
A child picks up earth, dirty things, tiles, stones, old bones, pieces of wood and puts them into his mouth, at which the father and mother, apprehensive of the harms that might arise thereby, take the child with the left hand and with the right take these out. The same goes with the bodhisattva: he sees that all beings are not grown up to the stage of law body and that non-good is done in body, speech, and mind. The bodhisattva sees, and with the hand of wisdom has it extracted. He does not wish that man should repeat birth and death, receiving thereby sorrow and worry.
When a father and mother part with their beloved son as the son dies, their hearts so ache that they feel that they themselves should die together with him. The same is the case with the bodhisattva: as he sees a benighted person fall into hell, he himself desires to be born there, too. [He thinks,] "Perhaps the man, as he experiences the pain, may gain a moment of repentance where I can speak to him of the Law in various ways and enable him to gain a thought of good."
For the father and mother of an only son, in sleep or while awake, or while walking, standing, sitting, or reclining, their minds always think of the son. If he does wrong, they give kindly advice and lead the boy that he does not do evil any more. The same is the case of the bodhisattva: as he sees beings fall into the realms of hell, hungry ghosts and animals, or sees them doing good and evil in the world of man and in heaven, his mind is ever upon them and not apart from them. He may see them doing all evil, yet he does not become angry or punish with evil intent.
20. Buddhism. Mahaparinirvana Sutra 470-71