There was a time when the earth was void of the cha cha. And then once again a variation on the moves and dances of the times and new steps emerged, and they felt good and were fun to do by those who did them. Routines emerged, they were popular with dancers who wanted to love and have with their dancing. And this new dance was named the ... cha cha.
About all, enjoy your discovery of and have fun with the cha cha.