Kavadi Attam (Tamil:காவடி ஆட்டம்) ("Burden Dance") is a ceremonial sacrifice and offering practiced by devotees during the worship of Lord Murugan, the Hindu God of War. It is a central part of the festival of Thaipusam and emphasizes debt bondage. The kavadi ("burden") itself is a physical burden, the bearing of which is used by the devotee to implore Murugan for assistance, usually on behalf of a loved one who is in need of healing, or as a means of balancing a spiritual debt. Devotees process and dance along a pilgrimage route while bearing these burdens.
The kavadi attam is steeped in mythology. At Mount Kailas, Lord Shiva entrusted the dwarf saint sage Agastya with two hillocks, the Shivagiri Hill and the Shaktigiri Hill, with instructions to carry and install them in South India. The sage left them in a forest and later asked his disciple, Idumban, to get them. Idumban found the two hillocks but could not initially lift them, until he obtained divine help. Near Palani in South India — where there is a famous shrine of Murugan — Idumban put the hillocks down to rest awhile. When he attempted to continue with his journey, he found that the hillocks were immovable.
Idumban sought the help of a scantily dressed youth, but the youth claimed the hillocks belonged to him. In the ensuing scuffle, Idumban was defeated. Idumban then realised that the youth was Lord Murugan. At this stage, Muruga had been outwitted in a contest for going round the world where his brother Ganapati had won the prized fruit. In anger, the frustrated child left the divine parents and came down to Tiru Avinankudi at the Adivaram (pronounced Adivâram and means foot of the Sivagiri Hill). Siva pacified Him by saying that He (Subrahmanya) Himself was the fruit (pazham) of all wisdom and knowledge. Later, Murugan withdrew to the hill and settled there as a recluse in peace and solitude.
Muruga had been made it impossible for Idumban to lift the hillocks. In the fierce battle that ensued, Idumban was killed but was later on restored to life. Idumban prayed that whoever carried on his shoulders the kavadi — signifying the two hills — and visited the temple on a vow should be blessed and that He (Idumban)should be given the privilege of standing sentinel at the entrance to the hill.
Hence the Idumban shrine is halfway up the hill where every pilgrim is expected to offer obeisance to Idumban before entering the temple of Dandâyudhapani. Since then, pilgrims to Palani bring their offerings on their shoulders in a kavadi attam. The custom has spread from Palani to all Muruga shrines worldwide.