Faith and love which are gifts of the Holy Spirit are such great
and powerful means that a person who has them can easily, and with
joy and consolation, go the way Jesus Christ went. Besides this,
the Holy Spirit gives man the power to resist the delusions of the
world so that although he makes use of earthly good, yet he uses
them as a temporary visitor, without attaching his heart to them.
But a man who has not got the Holy Spirit, despite all his
learning and prudence, is always more or less a slave and
worshipper of the world.

St. Innocent of Irkutsk, Indication of the Way into the Kingdom of
Heaven.