A man in a richly embroidered red and gold chasuble stands at the left, his body turned three-quarters to the right, his gaze lifted upward toward a burst of radiant light that streams down from the upper right corner. His right hand is raised, palm open and fingers spread, in a gesture of awe or invocation, while his left hand rests on an open book placed atop a stone pedestal at the lower right. The figure’s head is encircled by a faint halo, and his expression is one of intense devotion, his mouth slightly parted as if in prayer or ecstasy.

He wears a white alb beneath the chasuble, its folds rendered with smooth, luminous brushwork that catches the reflected light from above. The chasuble itself is painted with intricate golden scrollwork and floral motifs, its surface catching the light in a way that emphasizes its heavy, sumptuous texture. Behind the figure, the background is dark and undefined, focusing all attention on the illuminated saint and the dramatic shaft of light that pierces the gloom.

The brushwork is smooth and controlled, especially in the rendering of flesh and fabric, while the gold embroidery is picked out with fine, precise lines that suggest both weight and delicacy. The lower left corner of the painting reveals the hem of the white alb pooling in soft folds near the figure’s black shoes, which are partially visible beneath the vestments. The stone pedestal at the right is rendered in cool gray tones, with crisp linear edges and subtle highlights that suggest its solidity and weight.

A shaft of bright, cool light falls diagonally from the upper right, illuminating the man’s forehead, the top of his chasuble, and the open book, while leaving the left side of the scene in deep shadow. The upper right corner features swirling clouds painted in soft, blended strokes, through which the rays of light break, adding a sense of movement and atmosphere to the background.