Sinking into the dark, crushing depths of the sea brings a feeling of absolute nothingness, yet at the very lowest point of physical and mental despair, a sudden recognition of a miracle emerges. Jonah finds himself at the ocean floor, sinking to the very foundations and roots of the mountains where they embed into the depths. He reaches the absolute end of the earth, the point where the mountains are cut off at their base [מצודת ציון, אבן עזרא, רד״ק]. Submerged in the deepest abyss beneath the mountains that cover the ocean floor [מלבי״ם, רש״י], a sense of total suffocation and disconnection sets in. The earth above seems like a massive gate secured with unbreakable bars, locking him out. The primary approach among commentators is that Jonah believed the dry land was sealed off from him forever, as if the earth had closed over his head, never allowing him to float back to the surface [רש״י, מצודת דוד, מלבי״ם, אבן עזרא, רד״ק]. From another perspective, this intense feeling of being locked in serves as a stark realization that there is no fleeing from God. The entire earth functions as an inescapable prison, ensuring his flight is finally over [אברבנאל].
Yet, out of this profound despair comes a turning point of light and hope. Jonah recognizes that his soul has been lifted from the pit of the grave [מצודת ציון, רד״ק, אבן עזרא]. The mere fact that he has survived and remains alive inside the belly of the fish makes him realize that God has already saved him from certain destruction. This realization fuels his hope, giving him the strength to pray for a complete rescue and a return to dry land [רד״ק, מצודת דוד, ביאור שטיינזלץ, מלבי״ם]. This physical survival brings about a profound spiritual elevation. Even though Jonah recently viewed himself as trapped in the lowest depths of the underworld, he now feels that God has raised him up, positioning him spiritually directly beneath the holy sanctuary in Jerusalem [רש״י].
A unique interpretation connects this moment of salvation to a profound event from Jonah's past. While trapped inside the fish, Jonah recalls a childhood miracle in which he was brought back to life from death by the prophet Elijah. Remembering how God saved him from the grave once before fills him with absolute confidence that his prayers will break through the heavens and be heard once again [אברבנאל].