Invest time in personal relationships with non-Christians. The Enlightenment was fundamentally mistaken in supposing that reason is the key driver of history and human decisions. It is not.
The central theme for Epiphanytide is the manifestation of Christ to the world, which leads to the obvious exhortation that every Christian is called to repent and believe in the gospel.
The Scriptures are saturated with imagery of light; they begin with God speaking light into being and end with the heavenly Jerusalem alight with the glory of God.
Because of His visitation, we may no longer desire God as if He were lacking: our redemption is no longer a question of pursuit but of surrender to Him who is always and everywhere present.