That disposition implanted in the mind by the Holy Spirit, by which it is inclined to love, delight in, and attend to spiritual things. The spiritual minded highly appreciate spiritual blessings
are engaged in spiritual exercises
pursue spiritual objects
are influenced by spiritual motives
and experience spiritual joys. To be spiritually-minded, says St. Paul, is life and peace, Romans 8:6 .
See Dr. Owen's excellent Treatise on this subject.