Snake/Aries and Horse/Sagittarius meet at 80-85%, the fireside and the fairground. One prefers a good book, an easy chair, and a roaring fireplace to the noisy nightlife; the other is the loudest voice in the choir and lives fast on principle.
The Aries in Snake/Aries drops its heart on the ground early and then, reaching to pick it up, accidentally kicks it toward the Horse, and Horse/Sagittarius, assertive and a little boorish at first meeting, finds that shy dignity disarming. The Horse needed a lover of great strength to help it concentrate; the Snake is quiet strength itself.
Horse/Sagittarius shouts its opinions and asks no mercy in return; Snake/Aries answers rarely and precisely, which paradoxically carries further. The Snake's perceptive silences steer the conversation more than the Horse ever notices, and both prefer it that way.
Friction lives between hearth and horizon. The Horse's junk-food-and-adrenaline extravagance rattles the Snake's composed evenings, and the Snake's wounded dignity, when teased too hard, coils into long silences the straightforward Horse cannot read.
Snake/Aries lends Horse/Sagittarius the concentration to stay one course to the finish, and the Horse teaches the Snake to laugh at itself at last, which the Snake needed more than any fireplace. Stillness and speed each learn the other's use.
At 80-85%, Snake/Aries and Horse/Sagittarius are strongly compatible, quiet fire and loud fire banked together, lasting if the Horse comes home and the Snake unbends.