In Saint Jerome in His Study (Dürer), how is the Skull and Crucifix, and the Hourglass discussed?
The positioning of the Crucifix on Jerome's desk is such that when he looks at it he can also see the skull by the window. Looking at the crucifix reminds of the resurrection of Jesus, which righted the wrongs of Adam leading to death, represented by the skull. The hourglass represents the finite space of time that is a man's life. Viewing these symbols together leads to the thought of man's mortality, and the method by which to save the immortal soul.
Crucifix Jerome