Logical or λογικόσ as intelligent which is closely tied to the Logos, reason or logic of existence. To simply translate the word as logical is however inadequate. This is due to the term having a closer meaning to the aptitude or intellect and qualifies the possessor of spiritual knowledge. When used in conjunction with the soul or psyche the word then translates as endowed with intelligence. Intelligence itself as the ruling principle of the soul.
Glossary of terms the Philokalia volume 4 pg 432