Dew Wakes What Is Already Yours
The Avnei Nezer taught that Hashem answered Israel's plea for rain by promising to be like dew, which wakes the strength that is already inside.
Rain soaks the earth and stays in it, while dew works more quietly. In the words of the prophet, Israel asked that Hashem come to them like the rain, and Hashem answered that He would be like the dew. The Avnei Nezer explained the difference. Rain would put moisture into the ground from outside, so the growth would not truly be the ground's own. Dew only stirs the moisture already hidden in the plants, and then they flower. So it is with Israel, who have a strength of their own that needs only to be roused. His son, the Shem MiShmuel, built on this to describe the extra soul of Shabbos, which comes like dew and wakes a person's inner strength for the work of the week.
Source: Shem MiShmuel, Lech Lecha 1:3, quoting his father the Avnei Nezer
When you want to help someone grow, whether a child, a student or yourself, notice how much you pour in and how little you wake up. Today, instead of giving advice, ask one question that lets the other person find an answer of his own. Or notice one strength in yourself that you usually overlook, and say it out loud. Growth that comes from within tends to last longer than growth that is poured in from outside, and you may find that the strength was there all along.