According to Hinduism there are 5 elements and our body is made up of those 5 elements. These 5 elements are given a symbol.

The 5 elements are as given below :

No.	Elements	Symbol
1.	Infinity	8
2.	Air	Spiral
3.	Water	Circle
4.	Fire	Triangle
5.	Earth	Square

To understand these 5 elements and we have to understand the concepts of Magnetism and how it is related to our Earth's Magnetic Field.

Earth's Magnetic Field

The reason why a compass works is more interesting. It turns out that you can think of the Earth as having a gigantic bar magnet buried inside. In order for the north end of the compass to point toward the North Pole, you have to assume that the buried bar magnet has its south end at the North Pole, as shown in the diagram. If you think of the world this way, then you can see that the normal "opposites attract" rule of magnets would cause the north end of the compass needle to point toward the south end of the buried bar magnet. So the compass points toward the North Pole.

To be completely accurate, the bar magnet does not run exactly along the Earth's rotational axis. It is skewed slightly off center. This skew is called the declination, and most good maps indicate what the declination is in different areas (since it changes a little depending on where you are on the planet).

The magnetic field of the Earth is fairly weak on the surface. After all, the planet Earth is almost 8,000 miles in diameter, so the magnetic field has to travel a long way to affect compass. That is why a compass needs to have a light weight magnet and a frictionless bearing. Otherwise, there just isn't enough strength in the Earth's magnetic field to turn the needle.