Spiritual maturity means spiritual adulthood – the mature believer has successfully integrated and is constantly executing the plan of God for his life. The mature believer logs a maximum amount of time in fellowship – filled with the Spirit.
Spirituality: The absolute status of fellowship with God through the turning-away from a state of perpetual sin, via use of 1 John 1:9, if and when necessary. Also termed “the Filling of the Spirit.” Antonym: Carnality.
Reference our study Occupation With Christ and Volitional And Spiritual Maturity.