Waiting for a deeply held dream or desire to come true carries a heavy emotional weight. As time passes, the gap between expectation and fulfillment directly impacts a person's physical and mental well-being. The primary approach among commentators is that this refers to a hope that stretches on as the desired outcome is continually delayed. This is not just a passing wish. Rather, it is an expectation built on a solid promise and the certainty that the event will happen, yet the sheer delay still brings deep sorrow [מלבי״ם]. On an interpersonal level, this painful anticipation often occurs when someone promises a friend a favor but avoids following through [רש״י].
This state of endless waiting actively causes sickness and pain in the heart of the one who hopes [רש״י, אבן עזרא, מלבי״ם]. The relentless, obsessive thought about the delayed promise throws the heart off balance, drains the body of its strength, and ultimately makes the person ill [עמנואל הרומי, אמרי דעת].
However, when the deeply held desire is finally realized, it brings profound healing. It acts as a tree of life, serving as a metaphor for a remedy made of medicinal plants that removes the heartache, restores physical health, and revives the soul [אבן עזרא, מצודת דוד, אמרי דעת]. This joy is especially powerful because it fulfills a deep yearning that a person was never entirely sure they would actually achieve. When it finally comes to pass, or when it is achieved quickly without delay, it breathes new life into the individual [רלב״ג, מלבי״ם].
Beyond the psychological experience, this dynamic also exists on a spiritual level. It reflects the endless pursuit of material wealth, where a person is trapped in a state of prolonged expectation. Because a desire for money is never fully satisfied and a person always wants twice as much as they have, the pursuit leads only to constant worry. In contrast, the Torah represents the tree of life and a fulfilled desire, as even the smallest engagement with it grants immediate wholeness and life [אלשיך]. Another approach applies this to the relationship between God and Israel. God waits for the people to return to the right path, and when this expectation goes unfulfilled, it causes a metaphorical heartache. Yet, when the people finally do His will, it becomes a source of life for them [רש״י]. Ultimately, connecting to the source of goodness and wisdom is what allows human desires to find their true and lasting satisfaction [ביאור שטיינזלץ].