An excerpt from Edith Hamilton's Mythology for Heroism of Javidnaman of Iran
"The gods know that a day will come when they will be destroyed. Sometime they will meet their enemies and go down beneath them to defeat and death. Asgard will fall in ruins. The cause the forces of good are fighting to defend against the forces of evil is hopeless. Nevertheless, th gods will fight for it to the end.
Necessarily the same is true of humanity. If the gods are finally helpless before evil, men and women must be more so. The heroes and heroines of the early stories face disaster. They know that they cannot save themselves, not by any courage or endurance or great deed. Even so, they do not yield. They die resisting. A brave death entitles them—at least the heroes—to a seat in Valhalla, one of the halls in Asgard, but there too they must look forward to final defeat and destruction. In the last battle between good and evil they will fight on the side of the gods and die with them.
This is the conception of life which underlies the Norse religion, as somber a conception as the mind of man has ever given birth to. The only sustaining support possible for the human spirit, the one pure unsullied good men can hope to attain, is heroism; and heroism depends on lost causes. The power of good is shown not by triumphantly conquering evil, but by continuing to resist evil while facing certain defeat."
The hero can prove what they are only by dying. 40,000 heroes lived among us; a hundred thousand more is inspired to walk their path. It's impossible to have a posthomous interview with the martyrs; but whether they marched to victory or death, they marched in redefining what the creed of heroism means from here on.
Delāvari is literally to bring forth the heart.