Deep Abundant Water
Scholars have interpreted that seeing oneself in deep, abundant water without reaching its bottom may signify acquiring great worldly possessions and wealth. It has also been said that one might become involved in a matter concerning a prominent person. Bathing with cold water is interpreted as repentance and healing, release from prison, debt repayment, and safety from fear.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam