In the first half of the 17th century, two counter-reformation "mother" churches (
Sant'Andrea of the
Theatines and the
Chiesa Nuova of the
Oratorians) had been extensively decorated. This was not true for the two large Jesuit churches in Rome, which, while rich in marble and stone, remained artistically barren by the mid-17th century. This void would have been particularly evident for
Il Gesù with its cavernous blank plaster nave ceiling. In 1661, the election of a new General of the Jesuit order,
Gian Paolo Oliva, advanced the decoration. A new inductee into the order, the French
Jacques Courtois (also known as Giacomo Borgognone) had become a respected painter and was the main candidate for its decoration. Oliva and the leader of the main patron family, the Duke of Parma,
Ranuccio II Farnese whose uncle
Cardinal Alessandro Farnese had endowed the construction of the church, began negotiating whether Borgognone should decorate the vault. Oliva wanted his fellow Jesuit for the commission, yet other prominent names such as
Maratta,
Ferri, and
Giacinto Brandi were suggested. Ultimately, with
Bernini's persuasive support and likely strong guidance thereafter, Oliva awarded the prestigious commission to the mere 22-year-old Gaulli. This choice may have been somewhat controversial, since Gaulli's naked figures recently frescoed in the pendentives for
Sant'Agnese in Agone had offended some eyes, and, as had happened to Michelangelo's Sistine chapel altar frescoes, had required repainting to impose painted clothes. Gaulli decorated the entire dome including lantern and pendentives, central vault, window recesses, and transepts' ceilings. The original contract stipulated the dome was to be completed in two years, and the remainder by the end of ten years. If it met the approval of a panel, Gaulli was to be paid 14,000
scudi plus expenses. Gaulli's main vault fresco was unveiled on
Christmas Eve, 1679. After this, he continued frescoing of the vaults of the tribune and other areas in the church until 1685. Gaulli's program for the nave was likely heavily overseen by Oliva and Bernini; though it is not clear how much all three contributed and whether they all shared the same philosophy. During this time, Bernini supposedly espoused some
quietist teachings of the Spanish priest
Miguel de Molinos, who was later condemned as heretical in no small part due to Jesuit efforts. Molinos proposed that God was accessible internally through an individual experience, while the Jesuits saw the church and clergy as an essential intermediary for access to Christ's salvation. Thus Oliva would have likely asked Gaulli to memorialize the role of frequently-martyred Jesuits as the apostolic
shock troops in heretical and pagan societies, leading the charge of the papal
Counter-Reformation. Ultimately, just as Bernini approved of the intermixing fresco and plaster in this new plastic conception, Gaulli blends these ideas in a fashion ultimately acceptable to his patron. '' (1674) Gaulli's nave masterpiece, the
Triumph of the Name of Jesus (also known as the
Worship,
Adoration, or
Triumph of the Holy Name of Jesus), is an allegory of the work of the Jesuits that envelops worshippers (or observers) below into the whirlwind of devotion. Swirling figures in the dark distal (entry) border of the composition frame base the open sky, ever rising upward toward a celestial vision of infinite depth. The light from Jesus' name - IHS - and symbol of the Jesuit order is gathered by patrons and saints above the clouds; while in the darkness below, a fusillade of brilliance scatters heretics, as if smitten by blasts of the
Last Judgment. The great theatrical effect here inspired and developed under his mentor, prompted critics to label Gaulli a "Bernini in paint" or a "mouthpiece of Bernini's ideas". Gaulli's frescoes were a tour-de-force in illusionary painting, depicting the church's roof opens up above the viewer (and that the panorama is viewed in true perspective
di sotto in su, similar to
Correggio's frescoed dome ceiling depicting the
Assumption of the Virgin or to
Cortona's grand allegory at the
Palazzo Barberini. Gaulli's ceiling is a masterpiece of
quadratura (architectural illusionism) combining stuccoed and painted figures and architecture. Bernini's pupil
Antonio Raggi provided the stucco figures, and from the nave floor, it is difficult to distinguish painted from stucco angels. The figural composition spill over the frame's edges which only heightens the illusion of the faithful rising miraculously toward the light above. ==Later work and legacy==