Once upon a time, millennia ago, there was a young Japanese woman who fell in love with a man who wasn't her husband, and he fell in love with her too. One night they arranged to meet. The man brought the woman some blossom off one of the cherry trees, and they spent one beautiful, forbidden night together. At the first light of dawn the next day, the young woman dressed, picked up the blossom the man had given her, and stole back to her room before she could be missed. She never saw him again, but for the rest of that spring, and every spring following, she wore cherry blossom in her hair to remind herself of what it was to truly love. Her love for him lasted even after death, because some loves are eternal, and once forged can never be broken.
Aishiteru.