As an Inquirer, this is a time for you to ask questions, be introduced to Gospel values, and experience the beginnings of faith. If you feel that you are ready and would like to take the next step, this period concludes with the celebration of the Rite of Acceptance into the Order of Catechumens.

The inquiry stage is also  know as the Evangelisation and Pre-catechumenate period.

As a Catechumen, this is a time for your faith to be nurtured. You will be participating in celebrations of the Word and attending sessions to learn about Catholic faith and teachings. If you feel that you are ready and would like to take the next step towards initiation, this period concludes with the celebration of the Rite of Election/Enrollment of Names where there will be a diocesan-wide celebration of Catechumens.

As an Elect, this period (usually during Lent) preceding your initiation is meant to be a time of reflection, intensely centered on conversion, marked by the celebration of the scrutinies and preparation for the rites of the Sacraments of Initiation. During this time, you are still free to make a final decision whether you wish to be fully initiated into the church.

Mystagogy is a time for deepening of your faith as a new Catholic, a Neophyte.

Now that you have been initiated through baptism, confirmation, and Eucharist, as a Neophyte, you are fully a part of the community.  

The last phase of RCIA, Mystagogy, begins with the celebration of Christian initiation  Some special gatherings are scheduled to assist this process, which of course continues throughout the life of the new Catholic.