Those words, from the Rite for Ordination for the Order of Priests, seem to sum it all up for the picture below.
4 June 1962. Navy chaplain Luis Padillo was giving last rites to dying soldiers as sniper fire surrounded him. A wounded soldier pulled himself up by clinging to the priest’s cassock, as bullets chewed up the concrete around them. Hector Rondón Lovera, who had to lie flat to avoid getting shot, later said that he was unsure how he managed to take this picture.