451. The allusion is to the story of Rama having restored a dead Brahmana boy. During Rama's righteous reign there were no premature deaths in his kingdom. It happened, however, one day that a Brahmana father came to Rama's court and complained of the premature death of his son. Rama instantly began to enquire after the cause. Some sinful act in some corner of the kingdom, it was suspected, had caused the deed. Soon enough Rama discovered a Sudra of the name of Samvuka engaged in the heart of a deep forest in ascetic penances. The king instantly cut off the man's head inasmuch as a Sudra by birth had no right to do what that man was doing. As soon as righteousness was upheld, the deceased Brahmana boy revived. (Ramayana, Uttarakandam).
452. Literally, 'by giving up their own bodies'.
453. i.e., he is sure to come back to life.
454. The word sramana is used in Brahmanical literature to signify a certain order of ascetics or yatis that have renounced work for meditation. It is also frequently employed to mean a person of low life or profession. It should be noted, however, that in Buddhistic literature the word came to be exclusively used for Buddhist monks.
455. This is how Nilakantha seems to explain the line, Bhishma is anxious about the effect of his instructions. He says that those instructions would bear fruit if the gods will it; otherwise, his words would go for nothing, however carefully he might speak.
456. The commentator explains that including the first, altogether 12 questions are put by Yudhishthira.
457. This is an answer to the first question viz., the general aspect of ignorance.
458. The word Sreyas has a peculiar meaning. It implies, literally, the best of all things; hence, ordinarily, in such passages, it means beatitude or the highest happiness that one may acquire in heaven. It means also those acts of virtue by which that happiness may be acquired. It should never be understood as applicable to anything connected with earthly happiness, unless, of course, the context would imply it.
459. The sense is that such a man never sets his heart upon things of this world, and accordingly these, when acquired, can never satisfy him. His aspirations are so great and so high above anything this world can give him that the attainment of even the region of Brahma cannot, as the commentator explains, gratify him. At first sight this may look like want of contentment, but in reality, it is not so. The grandeur of his aspirations is sought to be enforced. Contentment applies only to ordinary acquisitions, including even blessedness in heaven.
460. i.e., such a man is sure of attaining to a blessed end.