Throwing into Pure Water
Scholars have interpreted that being thrown into pure water may signify a pleasant surprise. It has been said that a flowing spring is a blessing for the righteous, but a misfortune for others. The bursting of water from a wall is interpreted as sorrow coming from close male relatives or friends, such as a brother, brother-in-law, or friend.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam