In a Buddhist temple I have been impressed by this lady who prayed with special intensity. Buddhist practice in the incense sticks are used to ward off evil spirits.
This religious festival (Taoism) starts in the morning and continues until night. The procession moves from temple to temple and there are many cars and vans like this, where small bands, composed mostly by women and children, rhythmically playing music for the ritual.
Here it's shown an important gesture of this ceremony. The shirtless man you see is the priest of the temple, and every group or person who came, had to obtain his blessing and respect by a bow. This was an important step of the ceremony that has been repeated throughout the entire duration of the procession.
Another key part of the ceremony: several groups of men, after carrying on their shoulders these types of small shrines, once there in front of the temple, incited by the screams of the audience and accompanied by the constant music (and blessed by the customary bow of the "priest"), they performed one at a time in this exhausting ritual.