Not since 1944 has there been a blue moon on Halloween. The fullness of this opportunity opens in the heart of Halloween itself — an opportunity to be whoever you want to be. Unlike most of life's casting calls, in which other people hand you roles, Halloween is a self-casting opportunity. All you have to do is claim the role and it's yours.

ARIES (March 21-April 19). TRICK: Your smile is like a secret weapon. You can use it to disarm, invite, persuade, reward and even punish. TREAT: Someone entrusts you with excellent intel.

TAURUS (April 20-May 20). TRICK: People are afraid of taking responsibility because they fear it will limit their freedom. You sign up and find that you get more privileges because of it. TREAT: You'll take advantage of this tonight.

GEMINI (May 21-June 21). TRICK: The obvious route leads somewhere completely unexpected. TREAT: You have a sixth sense about choosing the path that will, in the end, prove the most delightful.

CANCER (June 22-July 22). TRICK: You let people know what they can expect from you, all the while intending to give something different, better and more. TREAT: Delivering beyond expectation nets you a sweet opportunity.

LEO (July 23-Aug. 22). TRICK: You care nothing about being the favorite, getting the most attention or cultivating a stellar reputation. You're in it for something else. TREAT: People admire you anyway, despite your indifference to approval.

VIRGO (Aug. 23-Sept. 22). TRICK: You give a compliment like a pro. Your secret is that you really mean it. TREAT: People gravitate to you. More than one will compete for your attention and favoritism.

LIBRA (Sept. 23-Oct. 23). TRICK: You simply work harder to fulfill the aesthetic ideal you're going for. TREAT: Your attention to detail will pay off; you'll get exactly your desired response.

SCORPIO (Oct. 24-Nov. 21). TRICK: You treat the night like it's a game of chicken and will prove yourself braver and more willing to risk than the others. TREAT: To the victor go the spoils.

SAGITTARIUS (Nov. 22-Dec. 21). TRICK: In your playfulness, you're able to find people's fears and buttons and then tap them, ever so slightly, for a fun adrenaline rush. TREAT: You get the pleasure (and the picture!) of their reaction

CAPRICORN (Dec. 22-Jan. 19). TRICK: You act like the leader, and then you become it. TREAT: You'll have the satisfaction of knowing that things would have devolved into chaos if it weren't for your following through with an impulse to take charge.

AQUARIUS (Jan. 20-Feb. 18). TRICK: Your attention is so sweet and more addicting than sugar, candy or the adrenaline rush that comes from being spooked. TREAT: Today's attractions will be mutual.

PISCES (Feb. 19-March 20). TRICK: You'll stack your schedule with the activities and people you love so that your chances of ending up somewhere you don't want to be and in bad company are absolutely nil. TREAT: This will be a near-perfect night.

TODAY'S BIRTHDAY (Oct. 31). You really do have extraordinary powers and you'll use them to elevate your group over these six weeks. In early 2021, you'll be attracted to interesting gambles that require you to engage your talents. Calculate the risk, make your move and enjoy a payout in March. Big promises and deals deliver in June. Pisces and Sagittarius adore you. Your lucky numbers are: 8, 20, 15, 12 and 4.

COSMIC QUESTION: In a typical year, the full blue moon of Halloween on a Saturday night would be four reasons in a row to gather and whoop it up. But the cosmic opportunity is not completely lost just because it won't, for many, occur in a crowd. Celebrating in fewer numbers — perhaps as few as one — is an excellent excuse to change the focus from sweets, spooks and costumes to the spiritual origins of the holiday.

Allhallows, also known as All Saints' Day, and the following All Souls' Day have been traditionally times of prayerful ritual to honor the beloved souls who have passed before us. Under the current Scorpio astral influences, it will be surprisingly easy to feel connected to our loved ones on the other side, who are really only a thought away. To focus on the essence of a person is to energetically call them on a spiritual line of communication that works like a cellphone with uninterrupted service. Tune inward and listen. May you find comfort and insight in the voice that answers the call.

CELEBRITY PROFILES: Academy Award-winning filmmaker Peter Jackson was born on Halloween, which may have contributed to his macabre sense of humor. A playful Scorpio born under an entertaining Leo moon, Jackson started his career with alien splatter comedies and grew to international acclaim with films such as "King Kong" and "The Lord of the Rings" franchise.

Write Holiday Mathis at HolidayMathis.com.