Valentine Dreams

One morning Emma woke up with a start.  Her husband Jim asked what was the matter, she told him, "I just had a dream that you gave me a pearl necklace for Valentine's day. What do you think it means?"
"You'll know tonight," Jim said.
That evening, Jim home with a small package and gave it to his wife. Delighted, Emma opened it - only to find a book entitled "The meaning of dreams".