(Sources: Sifsei Chaim, Beur Tefillas Shemone Esrei, Sefer HaChinuch, Rav Schwab, Iyun Tefillah, Nesiv Binah, Gateway to Happiness)

 The Gemara in Berachos (30b) teaches that one’s inner posture at the outset of Shemone Esrei is significant. A person should not begin prayer out of grief, nor from laziness, levity, or idle chatter. All of these states undermine kavanah. Rather, one must approach Shemone Esrei with koved rosh—a sense of gravity and presence. The Gemara explains that this koved rosh is not somberness, but simchah shel mitzvah—the joy that flows from spiritual purpose.