SIMCHAH
שמח
סימטשאַה
Simcha is a Hebrew word with several meanings. Literally, the word "simcha" means gladness, or joy. It comes from the root word "sameyach," which means glad or happy.
When a person is happy they are much more capable of serving God and going about their daily activities than when depressed or upset.
Jews often use simcha in its capacity as a Hebrew and Yiddish noun meaning festive occasion. The reason for it is that any celebration is a happy occasion. The term is used for any happy occasion, such as a wedding or engagement.