The Power of a Baal Simcha

I read the following:

Why is a person who makes a simcha called a "baal simcha" - literally, a master of happiness? Because when a person marries off a child or gets married himself or any other happy occasions, he is a master of happiness and this is why he has a tremendous power at the time of his simcha to bestow blessings on others (quoted in the name of the Chozeh of Lublin).

We have proof from the Torah - when Serach the daughter of Asher told Yaakov the news that Yosef is alive, Yaakov, in his tremendous simcha, blessed her that she should live forever.  She lived for hundreds of years and midrashim say she is still alive in Gan Eden.

When BasSheva was given the news that her son Shlomo would succeed Dovid as king and build the Beis Ha'Mikdash, she exclaimed, "Yechi Dovid Ha'Melech l'olam," and till this day we sing "Dovid Melech Yisrael chai v'kayam."

Says the Sefer Taamei Ha'Minhagim: Take advantage of your special powers as a baal simcha and bless everyone!