According to Jamie Wood's The Wicca Herbal, jasmine is associated with the goddess Diana, the god and planet Jupiter and the moon. It "increases self-confidence, self-love, spiritual love, prophetic dreams and prosperity." And all this time I just thought it smelled pretty!
The Magical Herbal Encyclopedia website claims jasmine, either in the form of flowers or essential oil, is used for calming the nerves, snakebite, eye problems, attracting love, prosperity and money, divination and psychic dreams, as well as for charging quartz crystals.
White jasmine flowers are symbolic of the moon and the mysteries of the night. The flowers are said to draw wealth and money if carried, burned or worn. You can smell the flowers to induce sleep, while burning the flowers in the bedroom should cause prophetic dreams - hopefully not nightmares about burning the house down!
Other magickal uses include meditation and astral projection. So get yourself some jasmine and open the door to love, money and prophetic dreams!