There are interesting patterns all around us. Here is one I found the other day. We were boiling lentils in a shallow bowl… and then, out of nowhere emerged an almost perfect pentagon!

The almost perfect pentagon that showed up on the surface
of the boiling lentils!

How cool is that. And does it mean something that five is a magical number (see thisthis and this). As this page on numerology says

Five is the symbol of human microcosm. The number of the human being. Human forms—the pentagon when arms and legs are out stretched. The pentagon is endless —sharing the symbolism of perfection and power of the circle. Five is a circular number as it produces itself in its last digit when raised to its own power. The pentacle, like the circle symbolizes whole, the quincunx being the number of its center and the meeting point of heaven, earth, and the four cardinal points plus the center point.

Five is also representative of the Godhead – Central Creator of the four fours plus itself equalling five. Five is the marriage of the hieros gamos as combination of feminine and the masculine. Feminine being even, as 2, in frequency and masculine being odd as 3 in frequency = 5.

The number five symbolizes meditation; religion; versatility. It represents the five senses (taste, touch, smell, sight, hearing) everywhere except in the East. In the East there are six—the extra being Mind. We find meanings to five in the five petaled flower, five pointed leaves–especially the ROSE. The Rose has much symbolism, but also the lily, vine, all of which represent the microcosm.

The five pointed star depicts individuality and spiritual aspiration, and education when it points upward. The five pointed star pointing downward represents witchcraft, and it is used in black magic. Noted: There is a very broad difference between witchcraft and black magic.

The number five formed the first counting process from which all else came.

Hmm… so what does this magical appearance of the pentagon mean?

If we believe that every pattern has some underlying explanation, can there be a more mundane explanation? I have a possible hypothesis of what lies behind this phenomena… but what do you think? Where did this pattern come from?