The Torah encompasses everything, and a person can always find in the Torah what he is seeking.

Ben Bag Bag says: Delve into it, delve into it, for everything is in it; and in it you will see and understand. Grow old and worn with it. Do not budge from it, as there is nothing better than it.

Rabbi Hiyya bar Abba said that Rabbi Yohanan said: What is the meaning of what is written: “The guardian of a fig tree will eat its fruit” (Proverbs 27:18)? Why are matters of Torah likened to a fig tree? Just as with regard to a fig tree, whenever a person searches it, he finds figs in it that he did not find previously, so too, with matters of Torah: Whenever a person contemplates them, he finds in them meaning that he did not find previously.

Why is the Torah likened to a fig tree? Because in all the other fruits there is waste: In dates there are pits, in grapes there are pits, and in pomegranates there are rinds; but the fig is entirely edible. Likewise, in matters of Torah there is no waste, as it is stated: “For it is not an empty thing for you” (Deuteronomy 32:47).

“And may they proliferate like fish in the midst of the earth” (Genesis 48:16). Just as fish grow in water, and yet when a single drop falls on them from above, they receive it thirstily as one who never tasted water in his life, the same is true of Israel: They grow in the water of Torah, and yet when they hear a new matter from the Torah, they receive it thirstily as though they have never heard a matter of Torah in their lives. (Mishna Avot 5:22; Eiruvin 44a–b; Yalkut Shimoni 2:2; Bereshit Rabba 97)