Who exactly was the dark-feathered god of desire? The insights that masterwork uncovers about the rebellious artist

A youthful lad screams as his head is forcefully held, a large thumb digging into his face as his parent's mighty palm grasps him by the neck. This moment from Abraham's Sacrifice appears in the Uffizi Gallery, evoking distress through Caravaggio's chilling portrayal of the tormented child from the biblical account. It appears as if the patriarch, instructed by God to kill his offspring, could break his spinal column with a solitary twist. Yet the father's preferred approach involves the metallic grey knife he holds in his other hand, ready to slit Isaac's throat. One certain element remains – whoever posed as Isaac for this breathtaking piece displayed remarkable expressive skill. There exists not only fear, shock and pleading in his shadowed eyes but additionally deep grief that a guardian could betray him so utterly.

The artist took a well-known biblical tale and made it so fresh and raw that its horrors appeared to unfold directly in view of you

Standing in front of the artwork, observers identify this as a real countenance, an accurate depiction of a adolescent model, because the same boy – recognizable by his tousled locks and almost black eyes – appears in two additional paintings by the master. In each instance, that highly expressive visage commands the scene. In Youth With a Ram, he peers playfully from the darkness while holding a lamb. In Victorious Cupid, he smirks with a toughness acquired on the city's streets, his black plumed appendages demonic, a naked child running chaos in a affluent residence.

Amor Vincit Omnia, presently exhibited at a British gallery, represents one of the most discomfiting masterpieces ever painted. Observers feel totally disoriented gazing at it. Cupid, whose darts inspire people with frequently agonizing longing, is portrayed as a very tangible, brightly lit unclothed figure, standing over toppled-over items that include musical devices, a music score, plate armor and an architect's ruler. This pile of items echoes, deliberately, the geometric and architectural gear strewn across the ground in Albrecht Dürer's engraving Melancholy – save in this case, the melancholic mess is created by this grinning deity and the turmoil he can release.

"Love looks not with the vision, but with the mind, / And therefore is winged Love painted blind," penned Shakespeare, just prior to this work was produced around 1601. But Caravaggio's god is not unseeing. He stares straight at the observer. That countenance – ironic and ruddy-cheeked, staring with bold confidence as he struts unclothed – is the identical one that shrieks in terror in Abraham's Test.

When Michelangelo Merisi da Caravaggio painted his three images of the same distinctive-appearing kid in Rome at the dawn of the seventeenth century, he was the highly acclaimed religious painter in a metropolis enflamed by religious renewal. The Sacrifice of Isaac reveals why he was sought to adorn sanctuaries: he could adopt a scriptural narrative that had been portrayed numerous occasions previously and make it so fresh, so raw and visceral that the terror seemed to be happening directly in front of the spectator.

Yet there was a different aspect to Caravaggio, apparent as quickly as he came in Rome in the winter that concluded the sixteenth century, as a artist in his early 20s with no teacher or patron in the city, only skill and audacity. The majority of the paintings with which he caught the sacred city's eye were everything but devout. What could be the absolute first hangs in the UK's art museum. A young man parts his red mouth in a scream of pain: while stretching out his filthy digits for a cherry, he has rather been bitten. Youth Bitten by a Reptile is sensuality amid poverty: observers can see Caravaggio's gloomy room mirrored in the cloudy liquid of the glass container.

The adolescent sports a rose-colored flower in his coiffure – a emblem of the sex commerce in Renaissance art. Venetian artists such as Titian and Palma Vecchio depicted prostitutes holding flowers and, in a work destroyed in the second world war but known through photographs, the master represented a renowned woman courtesan, clutching a bouquet to her bosom. The message of all these botanical signifiers is obvious: sex for purchase.

How are we to interpret of Caravaggio's erotic depictions of youths – and of a particular adolescent in specific? It is a question that has split his commentators since he gained mega-fame in the 1980s. The complex past reality is that the artist was neither the queer icon that, for instance, Derek Jarman presented on screen in his 1986 movie about the artist, nor so entirely devout that, as certain art scholars unbelievably assert, his Boy With a Basket of Fruit is in fact a likeness of Christ.

His early works indeed offer overt erotic implications, or including propositions. It's as if Caravaggio, then a penniless youthful artist, identified with Rome's sex workers, offering himself to survive. In the Uffizi, with this thought in consideration, observers might turn to an additional early work, the 1596 masterpiece the god of wine, in which the deity of wine gazes calmly at the spectator as he begins to undo the dark sash of his robe.

A few years after the wine deity, what could have driven the artist to create Victorious Cupid for the art patron the nobleman, when he was at last growing almost respectable with important ecclesiastical projects? This profane non-Christian god revives the sexual challenges of his early paintings but in a increasingly intense, unsettling way. Half a century afterwards, its hidden meaning seemed obvious: it was a portrait of the painter's companion. A British traveller viewed the painting in about 1649 and was informed its subject has "the physique and countenance of [Caravaggio's|his] own youth or assistant that slept with him". The identity of this adolescent was Francesco.

The painter had been dead for about forty years when this account was recorded.

Kristina Hall
Kristina Hall

Award-winning journalist with a focus on urban affairs and community stories in Southern California.