Anniversary is also a time to review, to recommit to renewal and to discern what the Spirit today is saying to the Church.
Archbishop Martin addresses up to 800 people from Ireland and UK at national charismatic renewal conference.
Sales surpass all expectations as Veritas considers possible fifth print run.
Unprecedented interest has people queuing in Dublin store waiting for reprints to arrive.
"We must discover ways and structures to do so," Bishop Brendan Leahy suggests.