The Anshei Knesset HaGedolah placed Aleinu LeShabe'ach into the Musaf Amidah of Rosh HaShanah, the very day when we crown HaShem as our King. There, it serves as the prelude to Malchuyot . As well, our Sages gave us the privilege of saying Aleinu at the end of every single tefillah, three times a day. If we would truly understand the treasure we have, being able to say Aleinu daily, we would approach it with tremendous joy and excitement. The Mishnah Berurah writes that one should recite Aleinu with awe and trepidation, because the malachim in shamayim listen as we say it, and the Shechinah is among them. When they hear us declaring Aleinu , they respond with the words אַשְׁרֵי הָעָם שֶׁכָּכָה לוֹ, אַשְׁרֵי הָעָם שֶׁה' אֱלֹקָיו . The Chida, in the name of Rav Hai Gaon, writes that one should recite Aleinu with the utmost kavannah, for it contains exalted and wondrous praises of HaShem. He adds that it should be said standing, even with a tallit over one's head. The Arizal teaches that Aleinu has the power to remove the negative angels who seek to block a person's prayers from ascending before HaShem. It begins with the words Aleinu le'shabe'ach la'Adon hakol —with those words we affirm that it is incumbent upon us to praise HaShem. Why specifically at the end of tefillah should we feel even more inclined to praise Him? Some explain: because HaShem has just given us the greatest gift. He allowed us to ask for all our needs, and He did so in a way that spares us from feeling like takers. In tefillah, we are credited with a mitzvah simply for fulfilling HaShem's command to pray. Even if no material blessing came from our prayers, the spiritual reward alone would be boundless. And yet, HaShem responds by providing our needs, as if we are somehow doing Him a "favor" by praying. Of course, He needs nothing from us. In truth, He is giving us everything, yet He makes us feel as if we are the ones giving to Him. For this, we should be overflowing with gratitude and praise. Then we declare: לתת גדולה ליוצר בראשית —"to give greatness to the Creator of the beginning." The Sefat Emet explains that Yotser Bereshit refers not only to HaShem as the Creator of the world, but as the One who continually pumps life and energy into all of creation. Every heartbeat, every breath, every moment of vitality flows from Him alone. Our task is to recognize this and live with that awareness. As we say during the Yamim Nora'im: וידע כל פעול כי אתה פעלתו —"And every being will know that You are its Maker." One of the reasons HaShem obligates us to make hishtadlut for our needs is to test whether we will believe that we are accomplishing with our own efforts, or whether we recognize that we are simply going through the motions while HaShem is doing everything. If we think that we actually change outcomes with our actions, then we have not yet passed the test. But if we believe that we are putting in effort only because HaShem commanded us to, and that the results will be whatever He wants, regardless of what we do, then we are succeeding. It appears to us that our hishtadlut causes results, and that is why it is so difficult to believe otherwise. If HaShem had not required us to make hishtadlut , it would be far easier to believe fully in His power and control. But now that we must make efforts, the challenge is great. We must not place too much emphasis on what doctors say, but only that we have fulfilled our obligation by going to them. We should not put too much emphasis on what kind of hishtadlut we do to earn parnasah, but simply that we did what was required for HaShem to send His blessing. HaShem is the Yotser Bereshit . He not only created the world, but He constantly pumps life and energy into everything, including us. For that, once again, we owe HaShem endless gratitude and praise. Let us learn the words of Aleinu properly and utilize the treasure that our rabbis gave us. If we can internalize its messages, we will walk out of every tefillah stronger in emunah, fortified with the clarity to recognize HaShem in everything that takes place.