What is tu ra lu ra lu ra?

"Tu Ra Lu Ra Lu Ra" is a traditional Irish lullaby often sung to infants and young children. The words "Tu Ra Lu Ra Lu Ra" do not have any particular meaning, but are simply used to create a soothing and calming melody. The song is also known as "Irish Lullaby" and has been covered by many artists over the years, including Bing Crosby and Van Morrison. The lullaby has become a popular symbol of Irish culture and heritage, and is often played at St. Patrick's Day celebrations and other events celebrating Irish traditions.