This if from the "Meditation of the Day" in MAGNIFICAT for 21st March, the fifth Sunday of Lent.
Alas! Sin came, it entered in, it took hold in us, whence the current reign of death and suffering. It is by them that our trial continues: it is by the suffering that must last unto death, even death on a cross, usque ad mortem, mortem autem crucis (Ph 2:8). The shadow and light of the cross now extend over our whole path. The cross is the pillar of cloud, a mixture of brightness and darkness, which goes before us: this is what truly matters, and we need only follow it to the end.