Arrangement of rhythmic percussive syllables to match a pattern that pictorially represents a shape or object is called a Yathi. This Yathi is a common phrase set up or pattern that is typically used at the very end of several time cycles of creative rhythmic meandering to make a pretty flourish that elegantly leads to the beginning of the new rhythm cycle or Samam. Typically, the pattern of the flourish or teermanam repeats thrice.
There are typically 6 accepted Yathi in practice. Dancers as well as percussionists use these throughout their works.