Qibla compass is designed specifically to help Muslims locate the direction of Mecca and pray facing the Kaaba. Some designs have the word "Mecca" inscribed as the most prominent direction on the compass; others have the image of the Kaaba or a Mosque signifying the qibla (Muslim direction) on the compass.
Although Judaism doesn't have a compass to show Jews what direction to face during prayers, the fact that Jews all over the world pray toward the Temple Mount is an evidence that Judaism is a direction and the Temple Mount is the qibla of the Jews.
Every religion is a compass - the centre of the compass is the source, origin or founder of the religion. This means that Islam is a compass, and every Mosque on earth is a direction on the compass. In other words, the Grand Mosque in Mecca is a compass representing Islam and other Mosque in other parts of the world are the different directions of the Great Mosque of Mecca.
The Kaaba is the centre of the compass, which means that all Mosques in all parts of the world are different directions united at the centre of a compass. The qibla in every Mosque is a direction facing the Kaaba (the centre of the compass), such that Muslims all over the world pray in a circle round the Kaaba whenever they pray in their respective Mosques.
Note that though the Great Mosque of Mecca is a compass, Islam is just a direction of the ultimate compass.
Through the knowledge of the compass in Islam we know that Christianity is a direction (a qibla) and every Church is a direction on the Christian compass. Whenever Christians pray or worship facing the direction of the altar of a Church, they pray or worship facing a qibla.
The place know as Saint Peter's Square in the Vatican City is a compass like the Great Mosque of Mecca. Every Church looking up to the leadership of the Pope of the Catholic Church is a direction of Saint Peter's Square. This means that the altar in every Catholic Church is a qibla, and Catholics all over the world pray facing the direction of the compass in Rome.
The compass is not about the physical building (or a Church or a Mosque). Rather, it's about people walking around a circle. Muslim pilgrims from all parts of the world demonstrate this during Circumambulation around the Kaaba.
From the knowledge of the celestial sphere, we understand that the compass doesn't necessarily means a place or location. It could also mean a person or an idea. Every man is a king at the centre of a celestial equator. If he events a religion, he is the origin of the circle and his members constitute the circumference of the compass. In other words, the members are gathered around him.
This means that Christianity is a Monad just like Islam is a Monad. Jesus is a point at the centre of a circle just as Muhammad is a point at the centre of a circle. Christians constitute the circumference of the circle round Jesus just like Muslims constitute the circumference of the circle round Muhammad.
Any religion that doesn't have a central figure or a centralised place is united around a set of principles constituting the centre of a compass. Such religion is a qibla and members of the religion constitute the circumference of the compass.
Christianity (or Islam or Judaism or any other religion) isolated from other religions is a compass, but not the qibla of the ultimate compass. Every Church that doesn't align with other Churches is not a qibla of the compass called Christianity.
God (the Supreme Ultimate Taiji) is the ultimate compass. Any religion that is not a qibla on the ultimate compass worships a god different from the Supreme God.
1. If Islam is not a qibla on the ultimate compass, Allah is a god different from the Almighty God.
2. If Christianity is not a qibla on the ultimate compass, Jesus is a god different from the Supreme God.
3. If Judaism is not a qibla on the ultimate compass, YHWH' is a god different from the Almighty God.
If Muslims say that the Christian God is different from Allah, then they acknowledge that they and the Christians are practising polytheism. As polytheists, the Kaaba in Mecca is the Most Holy Place (i.e the ultimate compass) and there is no compass greater than the Great Mosque of Mecca.
Without the qibla, every religion, religious group and denomination has its own god. When Christians worship and pray to Jesus while looking up to the altar of a Church isolated from the Christian compass, they meant that the god of that altar (not the god of the Christians) is Jesus. Though so many people are calling on the one name Jesus, there are different Jesus's in different altars in different parts of the world.
God is love, and Love is the origin (the point) at the centre of the compass. We all originate from that Love, and every human, irrespective of religious or none religious affiliation, is a qibla pointing in the direction of that love.
It is when we are united by love that we worship one God. In other words, monotheism is when Love binds us all together. It is when humanity worship love. This is the reason why the ultimate compass is the Compass Rose.
The Rose Flower signifies Love, and the Compass Rose symbolises God's love binding us together.