The coming of the Holy Spirit on Pentecost lit the fire of the Church. God’s Spirit is still and must always be the main source of light for Christians. Individually and as the Church, we should do what is necessary to keep ourselves good places for the Spirit’s flames to burn hotly and the Spirit’s light to shine brightly. It’s not our job to extinguish lesser lights that shine for the benefit of humankind so that we’re the only light in town; indeed, sometimes we should help their light be seen.
At the same time, however, we should never be so dazzled by other lights that we no longer shine for Christ or no longer “reproduce” and bring forth new generations of Christians.