Tirgan is an ancient festival celebrated in the Zoroastrian calendar, specifically on the 13th day of Tir. It symbolizes the blessings of rain and abundance. Historically, people celebrated this occasion with various ceremonies to express gratitude for nature's gifts. Today, Tirgan is observed as a cultural and social festival among Zoroastrians and those interested in Iranian heritage. It serves as an opportunity for families and friends to gather, reinforcing cultural and historical values.