This gallery contains images that shows some of the connections between the Art of Combat and Alchemy, Christianity and Astrology.
The Sun symbolizes death and resurrection. The Rooster, the first little creature to awake at dawn, is therefore tightly connected to the Sun.
The Lion and the Griffin, along with the Ox, the Eagle and the Unicorn are common symbols for the evangelists, Virgin Mary and Christ.
Combining the Eagle and the Lion into a Winged Lion or a Griffin creates a powerful symbol which combines strength with agility, sharpness, good vision and more associated capabilities.
Here are a few more of the groups of seven that were commonly referred to:
Seven Deadly sins
Seven noble & free arts
Astronomy & Astrology
Seven Sorrows of Virgin Mary
Her heart is commonly depicted with seven wounds. This is also where the Seven sword/lance symbol stems from.
The presentation at the Temple
The Flight into Egypt
Christ amongst the Doctors
The Road to Calvary
the Descent from the Cross
And then we of course have the Seven Heavens, the Seven Planetary Metals, the Seven Sisters in Greek mythology, the Seven Dwarves, and the Seven days of the week, of which God rested on the seventh.
Much more can be said on the topic, but I'll leave that to others for now. However this article might interest you The Rose and the Pentagram.