M6:1807 — گرچه در آب آتشی پوشیده شد / صد هزاران کف برو جوشیده شد

Translation: Though a fire was concealed within the water, Hundreds of thousands of foams boiled upon it.

Meaning: This verse articulates that even when a profound truth or an unseen force remains hidden from direct perception, its countless and manifest signs will eventually emerge on the surface, much like the foam that appears when water is heated by an invisible fire.

This stirring couplet is not merely a beautiful poetic image; it serves as a profound allegory for the workings of existence and the intricate relationship between the manifest and the hidden. Here, Rumi teaches us that many truths of the world, like a fire concealed within water, remain hidden from our eyes, yet their effects and signs are unmistakable. The foam and effervescence that rise to the surface of the water are decisive witnesses to the presence of that hidden fire.

I see this as precisely the perspective Rumi adopts in interpreting the connections between beings. He interprets these connections through the lens of joy and sorrow, union and separation, and meeting and parting. Pleasures, whether sensory, imaginary, or intellectual, all bear effects that occasionally surface from the breast of existence. As Rumi himself says, “A person's stoutness is from imagination; / If their imaginations are beautiful,” the imaginings of a person can lead to their spiritual flourishing or languishing; these are all hidden effects that reveal themselves.

This allegory also resonates with the scientific thought of Rumi's era. Ancient thinkers, both in the East and West, believed in a substance called 'caloric'; invisible particles that transferred from a hot body to a cold body, heating it. Rumi employs this very idea here: the fire, i.e., the caloric particles, is “concealed” within the water; you do not see them. However, “hundreds of thousands of foams boiled upon it”; these foams and the bubbling of the water are a decisive sign that the fire, that hidden element, has entered the water. Rumi, in the following couplet (which continues this very meaning), states: “Though the fire secretly creeps, / The foam with ten fingers points to it.” That is, the hidden fire creeps within the water, but the foam on the water, “with ten fingers,” meaning with all its might, testifies that the fire has settled within it.

We can extend this perspective to deeper layers of Rumi's worldview: Firstly, the theme of 'formlessness' (bī-ṣūratī). Rumi believes that the world of forms emanates from the formless. Fire, like light or the breath of the reed-player, is inherently formless, yet within the medium of water, it produces definite, formed effects. What boils and foams is a material form originating from a formless reality. Secondly, this couplet embodies the meaning Rumi expresses elsewhere: “The forms of the world are the sea's foam; / Pass beyond the foam if you are pure of heart.” The forms of the world, these very foams, are merely superficial manifestations; they are rooted in a deeper sea, which is that hidden fire. Thirdly, this is a key lesson in 'self-knowledge' (khwīshstan-shināsī). What boils within us—be it love, pain, yearning, or even suffering (i.e., the foams)—are all signs of a hidden fire in the depths of our soul. That fire is our very spirit and existential truth that brings the body (water) to a boil and agitation. We must recognize this hidden fire through these very foams and its external signs and pursue it.

Key takeaways

• Hidden truths ultimately manifest themselves through perceptible and evident signs.
• What effervesces and becomes apparent in the world and within us is an effect of a deeper, concealed force.
• Rumi leverages scientific theories of his time (e.g., caloric theory) to articulate his mystical worldview.
• The world of forms, like foam on water, is merely a superficial manifestation of a deeper, formless sea of unseen realities.
• Our emotions and spiritual states (such as pain, joy, and yearning) are signs of a hidden fire in the depths of the soul.