The answer is: It became black as sackcloth of hair

Rev 6 vs 12

When the sixth seal opened in the chilling drama of Revelation, the sun's transformation into an inky blackness akin to "sackcloth of hair" conjures powerful imagery. In ancient times, sackcloth was made from coarse material, often worn by those in mourning. This striking phrase emphasizes the seriousness and somberness of the events unfolding, depicting how even celestial bodies are affected by human plight.

This reveals a cosmic dimension of human choices and their consequences, marrying the temporal to the eternal. The felt chaos in the world below correlates to a portrayed upheaval above, demonstrating the interconnectedness between earthly events and the heavens.

Did you know that sackcloth was also associated with repentance throughout scripture? It's seen as a humble covering, perhaps representing the moral and spiritual darkness settled upon people. Look back to Joel 2:10, where similar cosmic signs appear—darkness before the coming of the Day of the Lord. In Revelation's language of drama and symbolism, we see layers rich for interpretation. These signals often relate to themes of judgment, renewal, and awakening.

Ultimately, the imagery challenges heavy-hitting emotions—grief, fear, yet expectation. And while the cosmic traversal might signal doom, it opens space for introspection, urging readers to consider the narrative oppositions within their own journeys. How splendid it is when light begins negotiating through darkness, rejuvenating hope in unforeseen ways!