Lub Tishtar Festival yog ib qho ntawm Zoroastrian jashnas, lossis cov hnub so me me, mob siab rau cov neeg dawb huv ntawm cov nag, qhov Avestan version ntawm nws lub npe zoo li Tishtriya, lossis Tishtrya. Hauv daim ntawv teev caij nyoog ntawm cov neeg ua raws cai ntawm Zoroastrianism, hnub so no poob rau lub Xya Hli 1.
Zoroastrian Tishtrya yog kev saib xyuas ntawm tus neeg muaj lub hnub qub Sirius, thiab tus thawj coj ntawm txhua lub hnub qub ntawm lub ntuj. Cov ntaub ntawv hais txog cov xeeb ceem no muaj nyob hauv Yashty, plaub ntu ntawm Avesta, ib phau ntawm Zoroastrian ntawv dawb ceev. Cov haujlwm tseem ceeb ntawm kev ntseeg ntawm no yog kev rov qab los ntawm cov nag rau lub ntiaj teb ua kom qhuav los ntawm tshav kub. Tishtrya tau pe hawm raws li tus neeg tua phom uas muaj peev xwm kwv yees ib daim ntawv ntawm tus nees dawb, lub kub muaj kub thiab lub cev hluas.
Lub Yashty qhia txog yuav ua li cas, rau peb hnub, hauv kev coj ntawm tus nees dawb, Tishtrya tau sib ntaus ntawm lub pas dej Vorukasha nrog lub ntuj qhuav heev Apaosha. Thaum cov rog tawm ntawm tus hero, nws rov hais dua mus rau lub siab tshaj plaws deity thiab Ahura Mazda muab nws lub hwj chim rau exorcise dab. Tom qab Apaosha swb lawm, nws pib los nag. Lub Zoroastrian Tishtrya sib raug rau tus txiv neej dhau los ntawm Tishya los ntawm Vedic mythology.
Hauv cov kab ke hnub ci lub hnub nyoog ntawm cov adherents ntawm Zoroastrianism, lub caij, hli thiab hnub lawv muaj lawv cov npe. Hnub thiab hli ntawm daim ntawv qhia hnub no tau muab lub npe hu ua Yazats, hauv lwm lo lus, cov tsiaj txhu uas yuav tsum tau pe hawm, ib tus yog Tishtrya. Nws lub npe nyob rau hnub kaum-kaum peb ntawm txhua lub hlis thiab hnub plaub ntawm kaum ob hlis. Hnub ib uas ob lub npe ua ke yog hnub so rau Yazat.
Hauv cov kab ke Zoroastrian daim ntawv qhia hnub, tom qab ntawv Persian cov npe siv, yog li ntawd hnub thiab lub hli hauv nws yog hu ua Tire, thiab hnub so nws tus kheej, uas poob rau Lub Xya Hli 1 ntawm Gregorian daim ntawv, hu ua Jashn-e Tirgan. Nyob rau hnub no, koj yuav tsum cheb hauv pem teb hauv thiab ib puag ncig lub tsev, hnav khaub ncaws huv thiab muaj kev lom zem sib xyaw ua ke. P. Globa, hais txog nws qhov kev ua raws li lub tswv yim Zervanian uas tsis yog kev coj ua hauv Zoroastrianism, siv lub npe "Feast of Tishtar" hauv nws daim ntawv qhia hnub thiab hloov nws mus rau plaub ntawm Lub Xya Hli.
