Click the link below for the explanation of the Catholic Priesthood as set out in the Catechism of the Catholic Church;
You may also wish to read an article written by Fr Michael Pui in 2009 on Priestly Celibacy. The article was his response to some some negativity on the subject during the Year of Priests.
The Diocese of Christchurch has Fr John O’Connor as its Vocation Director. If you are interested in exploring if you have a call to the priesthood, or just want to find out more, click on the link below which will take you to the Diocesan Site: ChCh Diocese – Vocations