St. Valentine's Day started as a lewd, sensual, pagan festival in Rome. Lupercalia is a rite connected with fertility, honoring Venus, the goddess of sex.
Peter, while warning about impending suffering, nevertheless distinguishes himself as the apostle of hope, keeping our minds on what is to be rather than what now is.
If we do not keep God's holy days, we will deprive ourselves of the knowledge of God's purpose. Jesus and the first century church observed and upheld these days.
We live in a time when people have acquired a weak sense of obligation to family, society, or nation. Because sin cannot be undone, all are debtors to God.