When a crowd filters into a line, it is the natural instinct of humans to fall into an alternating line and merge, also known as the zipper. It's just one of many ways we enact the spirit of cooperation that is in our DNA. The Aquarius moon reminds us that when we encounter antisocial behavior, it is the exception, not the rule. Teamwork is our true default.

ARIES (March 21-April 19). In the same way you can't make up a nickname for yourself, your reputation is up to other people to decide. Any detectable shaping of that will have an effect opposite than intended.

TAURUS (April 20-May 20). You'll experience a friendship luxury. You'll bring your half-formed ideas and your knottiest dilemmas to the one you trust implicitly and have an exciting, intelligent conversation about it.

GEMINI (May 21-June 21). What happens in your personal life can also be seen through the wider lens of society. In fact, you'll notice how your actions play into the politics of these times. It seems there are no purely personal choices to be made.

CANCER (June 22-July 22). There's a reason you keep coming back. You wouldn't return unless it was doing something for you. If this is an unwanted cycle, it's an ideal time to brainstorm: What am I getting out of it?

LEO (July 23-Aug. 22). When you're already playing at a higher level, some consider the quest for more to be greedy. You see it as a continuance of your education. You desire improvement without hating where you're at.

VIRGO (Aug. 23-Sept. 22). Many people learn best by doing, and for good reason. In action, you can feel the excitement of each move, the thrill of getting it right and the pain of doing it wrong. You're brave, and you want to learn quick. Throw yourself in.

LIBRA (Sept. 23-Oct. 23). Harmony depends on not only hitting certain tones but also doing so in the right timing with others. You nail it. You pace yourself so timetables can match up — between friends, colleagues, professional allies and more.

SCORPIO (Oct. 24-Nov. 21). Surface qualities may attract a relationship, but they won't carry it. You want to connect with, help and learn from others, and it requires you to bring much more consideration and effort to the table.

SAGITTARIUS (Nov. 22-Dec. 21). The future knows how it wants to look and will defy any image of it you've created in your mind's eye. Don't let this stop you from dreaming, though. Your influence over the future, while not absolute, is still significant.

CAPRICORN (Dec. 22-Jan. 19). Inside every stage of life is many seasons. To gain, lose, molt, flower, fruit and more will happen again and again. All the gains and losses of today will be for the short term.

AQUARIUS (Jan. 20-Feb. 18). It is too much to ask yourself to muscle down and do a thing without support. At the very least, support yourself by creating an environment that is conducive to accomplishing the aim.

PISCES (Feb. 19-March 20). Understanding is a kind of pleasure akin to fitting the right puzzle piece into a hole. It's even more satisfying when you are seeking to understand and it finally happens, which is what occurs today.

TODAY'S BIRTHDAY (May 31). You break into new territory and make the rules. As the founder of the culture, you'll ask excellent questions like, "What would this scene be if we all do it this way?" You'll follow through, and in years to come, they'll tell the story. The deeper you go into an interest, the happier you become. Interpersonal agreements are enriched. Aries and Scorpio adore you. Your lucky numbers are: 8, 40, 3, 1 and 17.

MEMORIAL DAY TRINE: Mars and Neptune in water signs align to form a trine of good fortune on this day of remembering. Mars is in Cancer, the sign of home — and the sign of patriotism, which is pride of home on a larger scale. With Neptune in spiritual and empathetic Pisces, our hearts stretch to try and embrace unfathomable concepts, such as the depths of grief and the heights of honor for the duty-bound who have made the ultimate sacrifice for the protection and freedoms of others.

The philanthropic Aquarius moon highlights a theme here, too. Casting a soft shadow on our ceremonies, beyond the cemetery, behind the waving flags, is the glowing backdrop that is the uncertainty of this life. Even as our minds race for answers to the profoundly unanswerable questions, uncertainty is the constant we can count on.

To contemplate death is a ubiquitous spiritual practice that spans philosophies, religions and time periods, and is among the most effective ways to focus oneself on how a day should be spent. As you remember others, think also about what you wish to accomplish while you're getting your turn to breathe in the unique atmosphere of this lifetime. Whatever is on your list, you can be sure there's no good reason to wait.

CELEBRITY PROFILES: Like a typical Gemini, Clint Eastwood wears many hats, and his astonishing versatility has won him awards in different fields. This actor, director, producer and composer was born when Mercury was in Taurus, showing grit and tenacity. His moon and Venus are in the soulful sign of Cancer. Mars and Uranus in Aries, the sign of the warrior, add fiery charisma to the mix.

Write Holiday Mathis at HolidayMathis.com.

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