Welcome, month of passion and ardour! Though the origins of St. Valentine's Day, and its transformation into the modern consumerist observance of Valentine's Day are many and varied, the one thread that remains constant is that we spend the month thinking of love and warmth and togetherness. Who shall ignite the fire of passion for you during this month of love?
Definition 1b of fire from Merriam Webster is as follows:
b (1) : burning passion : ardor (2) : liveliness of imagination