Variantly "ya'arof like rain my taking": R. Dostai, b. R. Yehudah says: If you have gathered words of Torah in the manner of those who gather rain into a pit, in the end you will "stream" it (menazel [as in "tizal," Devarim 32:2]). As it is written (Proverbs 5:15-16) "Drink water from your pit and nozlim (liquids) from the midst of your well. Then your springs will spread outwards."
Variantly "ya'arof like rain My taking": R. Yehudah was wont to say: One should gather words of Torah as (general) principles; for if he gathers them as particulars, they weary him and he is at a loss. An analogy: One going to Caesarea and requiring one hundred or two hundred zuzim for expenses — If he takes them in perutoth (small coin), they weary him and he is at a loss; but if he melts them into selaim (large coin), he can change them wherever he wishes. One going to a fair and requiring one hundred maneh or two ribo — if he takes them as selaim, they weary him, and he is at a loss; but if he melts them into golden dinars, he can change them wherever he wishes.