Orthodox theologians argue that the mind (reason, rationality) is the focus of Western theology, whereas, in Eastern theology, the mind must be put in the heart, so they are united into what is called nous, this unity as heart is the focus of Eastern Orthodox Christianity involving the unceasing Prayer of the heart. In Orthodox theology, in the Eastern ascetic traditions one of the goals of ascetic practice is to obtain sobriety of consciousness, awakeness (nepsis). For humankind this is reached in the healing of the whole person called the soul or heart. When a person's heart is reconciled with their mind, this is referred to as a healing of the nous or the "eye, focus of the heart or soul". Part of this process is the healing and reconciliation of humankind's reason being called "logos" or "dianoia" with the heart or soul. While mankind's spirit and body are energies vivified by the soul, Orthodoxy teaches man's sin, suffering, and sorrow are caused by his heart and mind being a duality and in conflict. According to Orthodox theology, lack of noetic understanding (sickness) can be neither circumvented nor satisfied by rational or discursive thought (i.e. systematization), and denying the needs of the human heart (a more Western expression would be the needs of the soul) causes various negative or destructive manifestations such as addiction, atheism and evil thoughts etc. A cleaned, healed or restored nous creates the condition of sobriety or nepsis of the mind.