Simply divine: the extraordinary supernatural visions of Francisco de Zurbarán

He painted sea battles, the labours of Hercules and breathtaking still lifes. But, as a major new exhibition makes clear, it was in his thrilling depictions of the spiritual that the Spanish master showed his true geniusAgainst an impenetrable black ground, the crucified figure looms pale and shining. There’s almost no colour, beyond the trickle of blood on Christ’s feet from the nails driven through his flesh. His head slumps, and his carefully modelled face is at peace (no agony here). But the most striking part of the picture is surely the loincloth, which folds and crumples and bunches around his midriff – you can imagine passing your hand over it, feeling the linen’s volume and texture. In its original home, the monastery of San Pablo el Real in Seville, the painting was displayed with “little light”, according to the 17th-century Spanish artist and writer, Antonio Palomino. “Everyone who sees it, and does not know it, believes it to be a sculpture.” The paleness o