The concept of Irrational Soul in Christianity
Irrational Soul is a concept that varies across different religious traditions. In Eastern Orthodoxy, it pertains to living creatures without rational faculties, such as animals, which possess life and a soul from the Good. The Catholic Church views the Irrational Soul as the aspect that harmonizes appetites, promoting personal peace. In Early Christianity, it refers to non-rational components of the soul, thought to emerge due to sin's influence and seen as separate from God.
The below excerpts are indicatory and do represent direct quotations or translations. It is your responsibility to fact check each reference.
Christian concept of 'Irrational Soul'
From: Ante-nicene Fathers
(1) The part of the soul that is associated with non-rational elements, which is believed to have arisen later due to the instigation of sin and is considered alien to God.[1]
From: The city of God
(1) This refers to the part of the soul that is characterized by harmonious repose of the appetites, contributing to the overall peace of a person.[2]
From: The Works of Dionysius the Areopagite
(1) Living creatures, including animals, that lack rational faculties but still possess life and a soul derived from the Good.[3]
Gnostic concept of 'Irrational Soul'
From: Fragments of a Faith Forgotten
(1) This refers to the part of the soul that is similar to the animal souls of its nurses, while the rational soul shares the same heredity with the minds, but the spirit within it is illuminated by the Christ.[4]