The Gathas of the Avesta, in which the metre has been retained, and along with it the older forms of the language--poems which, according to another part of the Avesta (the Çrosh Yasht), Zarathrustra composed and Çraosha first sang[228]--are the most speculative part of the book. They tell of the existence of the good and evil spirits, place both in the beginning of things, identify Auramazda with the truth and Angromainyu with the lie, bring forward Auramazda as the creator of the world and of living creatures, as the source of what is good in man and nature, and describe the duties of the true worshippers and the rewards which they may expect, together with the punishments which will come upon the worshippers of the Daevas. The ancient gods, Mithra, Haoma, Tistrya, Anahita and Drvaçpa are not mentioned in the Gathas; though emphasis is laid on the blessing of the "imperishable red fire of Auramazda." In their place we have Asha (Truthfulness), and Vohumano (Good disposition), Armaiti (Piety), and Kshathra (Dominion); these are at times merely ideas, at times they are personified beside Auramazda. In these poems Zarathrustra addresses a number of questions to Auramazda: "This question I will ask of thee; answer it truly, O Ahura. Who is the first father and begetter of truth? Who created their paths for the sun and stars? Who causes the moon to wax and wane? Who sustains the earth and holds the clouds above it? Who created the water and the trees of the field? Who is in the wind and the storms that they move so swiftly? Who created the beneficent lights and the darkness? For whom didst thou create the imperishable cow Ranyoçkereti (the Earth)? Who formed the earth with its great blessings? Who are the Daevas, which fight against the good creation? Who slew the hostile demons? Who is the truthful one, who is the liar? How are we to chase away the lies, how shall I put the lies into the hand of Asha (Truthfulness)? How can I come to your dwelling (the dwelling of the gods), and to your song? Give me now the command, what ought to be and what ought not to be, in such a way that we attentive ones may understand it, O Mazda, with the tongue of thy mouth, how am I to convert all living creatures, and guide them to the right path, which leads to him who hears the praises of the truly pious in heaven (Garonmana). Tell me clearly, what ye command me as the best, that I may keep it in my heart, and remember what has been forgotten, Mazda Ahura, all that ought to be, and ought not to be. Teach us, O True one, the way of Vohumano created by thee. Let us, O Mazda, receive thy sayings which bring blessing."