The world is judged at four times

On Pesach the world is judged for grain, on Shavuot for tree fruit, on Rosh Hashanah all creatures pass before Him like bnei maron, and on Sukkot for water. "Like bnei maron" - one by one, like sheep passing through a narrow gate; each person is examined individually.

1. 1Restate the source in your own words.
2. 2Identify the central distinction and explain its significance.
3. 3Apply the distinction in the exercise without adding a ruling absent from the source.