Orthodoxy does not, like centring (prayer) for example, have to search for meditative techniques in Eastern religions or for contemplative techniques in the western Christian mystical way that begins with the stage of purification, continues to illumination and arrives at the unitive state of the soul with the Divine. The reason for this is not merely that Orthodoxy already has, or is, the way of hesychasm or the Jesus prayer, but that the entire theological framework of Orthodoxy expresses the belief in the idea of theosis or deification.

https://www.amazon.com/dp/1475250231

ÁNGEL FRANCISCO SÁNCHEZ ESCOBARIn this book, I deal with Orthodox worship as it is today by describing its prayer cycles, meaning of the holy services, liturgical books, Scriptural reading, and a process model of catechesis, linked to worship and the liturgical periods. I will not address western rites and Canon Law, but it is a fact that western rites are legitimate western continuation of liturgies celebrated in the undivided Church, before the Schism of 1054. Also, liturgical law is part of canon law, as it legislates the ways in which we celebrate, the actions we use to give life to those celebrations and the design and environment of the space in which we celebrate.https://www.amazon.es/dp/1511978945