7th Birthday Party Program Script

I`m going to have my niece`s 7th birthday party this Sunday(October 11, 2010). Please give me an idea about the meaning of the following: 7Lollipops,7 candles, 7 treasures, 7 wishes, 7 balloons and 7 toys. In addition, please give me an idea of the above subject. Thanks very much...
Posted by lucille; updated 10/05/10