DAR ES SALAAM, May 31 -- PSYCHOLOGISTS say ritual purification is a feature of many religions. The aim of these rituals is to remove specifically defined uncleanliness prior to a particular type of activity, and especially prior to the worship of a deity.

On the other side, a dance is a performance art form consisting of purposefully selected sequences of human movement.

This movement has aesthetic and symbolic value, and is acknowledged as dance by performers and observers within a particular culture.

In some occasions, domestic cats play with dead bodies of their victims before devouring them.

These kinds of rituals involve specific activities which are believed to make an individual very clean for a very important duty or position ...