Rabbi Nachman of Breslov
Get into the habit of singing a tune. It will give you new life and fill you with joy. Get into the habit of dancing. It will displace depression and dispel hardship.
§ The Gemara explains another verse in Proverbs: “If there anxiety in a person's heart, let him quash it [yashḥena]” (Proverbs 12:25). Rabbi Ami and Rabbi Asi dispute the verse’s meaning. One said: He should forcefully push it [yasḥena] out of his mind. One who worries should banish his concerns from his thoughts. And one said: It means he should tell [yesiḥena] others his concerns, which will lower his anxiety.
(א) מודֶה [מודָה] אֲנִי לְפָנֶיךָ מֶלֶךְ חַי וְקַיָּם, שֶׁהֶחֱזַרְתָּ בִּי נִשְׁמָתִי בְּחֶמְלָה, רַבָּה אֱמוּנָתֶךָ:
(1) I offer thanks to You, living and eternal King, for You have mercifully restored my soul within me; Your faithfulness is great.