Is this the St. Bernard who wrote many of your hymns of today?

Yes, St. Bernard of Clairvaux, a 12th-century Cistercian monk, is known for his significant contributions to Christian hymns and spiritual writings. While not all hymns attributed to him are widely sung today, his works have influenced Christian liturgy and hymnody. His writings emphasize themes of love, faith, and devotion, resonating in various forms within contemporary worship.