Daily Dose of Bitachon: The Treasure Houses of the Deep Welcome back to our Sha'ar HaBechinah series. We are currently in chapter four, where Rabbeinu Bachya encourages us to look into the roots and foundations of the world. He quotes a pasuk where Hashem speaks to creation and says: "Come until here and go no further" ( עד פה תבוא ולא תוסיף ). The Midrash Tanchuma discusses this, explaining that when Hashem created the oceans, the waters asked, "Should we all mix together—the sweet waters and the salty waters?" Hashem replied, "No. Each of you should remain in your own area." As it says in Tehillim : Noten b'otzarot tehomot —He places the depths into "treasure houses." This means that each type of water is its own distinct treasure house. The Miracle of the Human Face How is it possible to keep these waters from mixing? Hashem says: Look at the human face. Within just a few inches, there are several different "wellsprings," and they never mix. The water of the eyes is salty, the ears have wax, the nose has its own fluids, and the water of the mouth is sweet. If Hashem can create distinct, unmixing wellsprings in the small space of a face, He can certainly do it in the vastness of the ocean. The Science of Separation How does this work in the ocean? Even though it's one body of water, it contains different temperatures and levels of saltiness. These distinct masses don't blend—much like oil and water, but far more complex. Density: Cold water and salty water are denser, so they sink. Warmer, less salty water rises to the top. These differences in density act as barriers that slow down mixing. Silt and Rivers: Rivers carry silt, creating a cloudy, less dense layer that doesn't immediately mix with the clear, salty ocean water. This often leads to visible lines in the water where the colors don't blend. The "Layer Cake": Between currents, circulation, and different nutrients, the ocean is like a giant seven-layer cake. Each layer has its own "flavor" defined by its specific characteristics. Tailor-Made Habitats What is even more fascinating is that different fish live in different parts of the ocean. The secular scientific approach claims these fish "evolved unique adaptations" over millions of years to survive the pressure, salinity, and temperature. But that is clearly backwards. If a fish doesn't have the ability to live in salty water, it will die immediately; it doesn't have billions of years to "work it out." The truth is the opposite: HaKadosh Baruch Hu created every specific ecosystem and then created the fish perfectly suited for it. We see this everywhere in nature: Polar Bears: Created for the cold with thick fat and heavy fur. Desert Animals: Created with the specific qualities needed to thrive in the heat. Mammal Milk: As Rabbi Avigdor Miller, zt"l, once beautifully pointed out, the milk of every mammal is perfectly formulated for the specific environment in which that animal lives. The Takeaway The ocean isn't just one uniform tank of water; it is a vast collection of diverse habitats, each supporting species uniquely suited to their conditions. Hashem created an ocean with multiple "seas" existing within it simultaneously. This is another "wonder of wonders" from our Borei Olom , showing us that every detail of our world is precisely designed for life to flourish.