They called for a process of mystagogy, i.e. initiation into the mystery of Salvation.

Photius addresses in his entire work on the Filioque the Mystagogy of the Holy Spirit.

Saint Photius the Great, Mystagogy of the Holy Spirit (English translation)

The commentary returns often to the topic of the anointing of the Holy Spirit and was originally written as a mystagogy, an instruction for new Christians.

Which was put forth by Patriarch Photios I of Constantinople in his work against the filioque named "Mystagogy of the Holy Spirit".

The first English translation, by Holy Transfiguration Monastery, of the "Mystagogy of the Holy Spirit" by Photios was published in 1983.

Farrell produced the first English translation of the "Mystagogy of the Holy Spirit" by Patriarch Photios I of Constantinople (9th century).

The Mystagogy of the Holy Spirit - St. Photius (Holy Cross Orthodox Press 31 Dec 1982)

Hermeneutical Philosophy and Mystagogy of Proclus, Vilnius: Lithuanian State Institute of Philosophy and Sociology, Eurigmas, 2002.

Sometimes psychoanalysis claims to be a genuinely scientific activity, in contrast to, say, Jungian mystagogy; at other times, when confronting the proponents of a hard scientific approach to psychology, like behaviourism, psychoanalysis presents itself much more in terms of myth and metaphor and explanatory fictions.