| "And HaShem said to Moshe, "'Speak to the Kohanim, the sons of Aaron.'" The Kohanim are holy and their Divine service in the Temple is holy. HaShem was concerned that Kohanim might feel a little haughtiness because of their elevated status. Therefore, HaShem asked Moshe to inform the Kohanim that they have not attained their holiness on their own merit. Rather, their holiness stemmed from Aaron, who granted them the merit of holiness. This understanding gave the Kohanim the proper sense of humility. All spirituality, good character traits, and Torah wisdom are free gifts that HaShem grants to man. The more we are aware of HaShem's grace and kindness in all of our attainments, the more humility we will acquire.
When you say Shema Yisrael' reflect on the truth that all of your Torah, Mitzvot, and goodness are free gifts given to you by HaShem. The more you practice this reflection, the more humility you will experience. Once you acquire the true sense of humility, you have the foundation of all good character traits. (Based on the commentary of the Bat Eiyan)
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