Questions pertaining to Simcha - joy/happiness.
Simcha (Hebrew: שִׂמְחָה) is a Hebrew word that means gladness, or joy and is sometimes used as a name.
The concept of simcha is an important one in Jewish philosophy. A popular teaching by Rabbi Nachman of Breslov, a 19th-century Chassidic Rabbi, is "Mitzvah Gedolah Le'hiyot Besimcha Tamid," it is a great mitzvah (commandment) to always be in a state of happiness. When a person is happy one is much more capable of serving God and going about one's daily activities than when depressed or upset.
Jews often use simcha in its capacity as a Hebrew and Yiddish noun meaning festive occasion. The term is used for any happy occasion, such as a wedding, Bar Mitzvah or engagement.
For more see here.