Bhutan Purity Walk Festival. Here's one tradition that is simply fascinating to watch.

The Purity Walk, as it is called, is believed to purify your soul, having walked under a huge fire gate. The festival centers around a fire and commences with some religious rituals headed by a cleric. As the firecrackers burst, the religious cleric, with its followers and visitors closely behind, then leads the walk towards the fire gateway and passes under a bridge of a huge fire. This ritual appears to be rather dramatic, especially knowing that this could actually purify one's soul.