The Greek letter that make up this cross are phi, omega, and sigma, spelling ‘Phos’; zeta, omega, and eta, spelling ‘Zoe’
Phos is the Greek word for “light” and Zos is Greek for “life”. The Phos Zos cross symbolizes the light and life of Christ. The nature of light is that it cannot help but banish darkness. This light enables us to see the spiritual truth. The nature of life is that it banishes darkness; this light enables us to see spiritual truth.
The nature of light is opposite of death. Human life ends, but through Christ, our spiritual life is everlasting.