This ambitious work is very much a project of the Counter-Reformation, using the perspective device of di sotto in su to show the whole world rising to the Cross in response to the missionary work of St. Ignatius Loyola and the other Jesuit saints shown here.  At what is the bottom of the photo at left, figures rise from allegorical representations of Asia and Africa.  Along the opposite side of the composition Europe and  America complete the picture -- men and women rising toward Christ from every continent, and converging as they do.

Detail images:

Asia
Africa
Europe
America
Far left side
Far right side
St. Ignatius and Christ

More of the Cross