Question: why rath yatra is celebrated?
Answer: Ratha Yatra (/ˈrʌθə ˈjɑːtrə/) (also called as Car Festival or Chariot Festival) is a Hindu festival associated with Lord Jagannath held at Puri in the state of Odisha, India. ... The festival commemorates Jagannath's annual visit to Gundicha Temple via Mausi Maa Temple (maternal aunt's home) near Saradha Bali, Puri.