On the feast of St. John the Baptist in England was to make fires and kindle them at midnight ... a religious ceremony of most remote antiquity, especially among Celtic* nations. It was probably a vestige of the worship of the fire-god "Bel". The people then dance and leap round and over the fire. This midnight dancing is often found among Celtic races.
On the dance from Portugal* known as "Fogueiras de S. João" was a type of Fire dance where as the dancers would jump thru
fire. The Balinese Kechak dance is unique to the Balinese peoples with its roots in the old Shanghlyng dance (a trance dance). Hundreds of dancers take part in this festive event which uses no Orchestra or Musicians only a choir.