Rabbi Benayahu Shmueli, Head of the Yeshiva: Everything Follows the Head
Sanctify to Me every firstborn"—every first thing, sanctify it. Lead it in goodness. For example, when a person gets up in the morning, right away he should think good thoughts. How he will pray today, how he will perform commandments, charity, good deeds. He should think good thoughts, not think bad things. Then the entire day will go well. The first thought—that is what determines.

[People] are afraid of the month of Tishrei. You know what, the month of Tishrei—these are days of judgment, it's not simple, everything follows the head. It's Rosh Hashanah (literally: the "head of the year"), everything follows the head. How did you start? For example, they say "have a good week." How did you start the week? Well? Everything continues well. Did you start the day well? "Sanctify to Me every firstborn"—every first thing, sanctify it. Lead it in goodness. For example, when a person gets up in the morning, right away he should think good thoughts. How he will pray today, how he will perform commandments, charity, good deeds. He should think good thoughts, not think bad things. Then the entire day will go well. The first thought—that is what determines.