Teru teru bozu

Teru teru bozu ....saw this first in a Japanese dorama that I downloaded when I was in India. At that point, I didnt understand its significance. But now getting to know more, I c how important that was in the entire dorama....

Teru teru bozu (てるてるぼうず; "shiny-shiny Buddhist priest") is a little traditional hand-made doll made of white paper or cloth that Japanese farmers began hanging outside of their window by a string. This amulet is supposed to have magical powers to bring good weather and to stop or prevent a rainy day. "Teru" is a Japanese verb which describes sunshine, and a "bōzu" is a Buddhist monk (compare the word bonze).
Teruteru bozus became popular during the Edo Period among urban dwellers, whose children would make them the day before the good weather was desired and chant "Fine-weather priest, please let the weather be good tomorrow."
Today, children make teru-teru-bōzu out of tissue paper or cotton and string and hang them from a window to wish for sunny weather, often before a school picnic day. Hanging it upside down - with its head pointing downside - acts like a prayer for rain. They are still a very common sight in Japan.
There is a famous warabe uta (traditional japanese song), or Japanese nursery rhyme, associated with teru teru bozu:

Teru-teru-bōzu, teru bōzu
Ashita tenki ni shite o-kure
Itsuka no yume no sora no yo ni
Haretara kin no suzu ageyo
Teru-teru-bōzu, teru bōzu
Ashita tenki ni shite o-kure
Watashi no negai wo kiita nara
Amai o-sake wo tanto nomasho
Teru-teru-bōzu, teru bōzu
Ashita tenki ni shite o-kure
Sore de mo kumotte naitetara
Sonata no kubi wo chon to kiru zo

Teru-teru-bozu, teru bozu
Do make tomorrow a sunny day
Like the sky in a dream sometime
If it's sunny I'll give you a golden bell
Teru-teru-bozu, teru bozu
Do make tomorrow a sunny day
If you make my wish come true
We'll drink lots of sweet booze
Teru-teru-bozu, teru bozu
Do make tomorrow a sunny day
but if it's cloudy and I find you crying
Then I shall chop your head off

Like many nursery rhymes, this song is supposed to have a darker history than it first appears. It allegedly originated from a story of a monk who promised farmers to stop rain and bring clear weather during a prolonged period of rain which was ruining crops. When the monk failed to bring sunshine, he was executed.