June the 25th is the feast of IMMORTALITY “ameretát” in the Avestan Calendar.
In the Indo-European poetry it is a basic feature of the god beings that they are “immortal and destined for eternity.”
Ameretát “immortality, deathlessness” is one of the virtues/god-powers of Mazdá in the poetic gathas.
In the Younger Avesta, the “ahûrás of mazdá” are simply referred to as amešá or amertá “immortal, undying, unfading (*n̥mr̥tós)” with the title speñtá “bright, auspicious.” Hence, amešá/amertá speñtá “the auspicious immortals.”
In Avestan, the idea of “the sacred” speñtá is that of “an auspicious and bright force swollen with abundant energy and unfading vitality.”
The “Sacred/Auspicious Immortals” are constantly invoked in the poetic gathas, they are virtues/god-powers and guardian saints of the elements in the physical realm. They teach the mortal men to become “Immortals, un-ageing, un-decaying and undying.
For in contrast to the Immortals, the humans are mortals “mašyá/martyá.” (The Persian word for man “mard” and “mardom” refers to the mortality of mankind.)
In Zoroastrianism, the Auspicious Immortals inspire mortals with a “superhuman force” to be just like the gods. As we read in the poetic gathas, Yasna 48.1, 3rd rhymed verse line “Immortality will triumph over demonic forces and mortal men.”
For demons, death and mortality represent limitation. But the unfading energy of mind-power/passion unleashed represents Mazdá, will regenerate the creation and inspire it to be undying, un-ageing and immortal.
The godlike supermen of Ahûrá Mazdá, will reshape the world in splendid excellence, and make it un-ageing, undying, un-decaying, eternal and forever young, as is in the ideal (vasö/wish for) dominion. (Yašt. 19. 11).
ýat kerenavãn frašem ahüm
azarešeñtem amarešeñtem
afrithyañtem apuyañtem
ýavaæ-jim ýavaæ-sum vasö-xšathrem
ardeshir