And because it is so, there are many ways to express the feelings it engenders.
Around the world there are some very cute, quirky and also strange, love idioms.
The UK diamond retailer Vashi, asked well-known illustrator Elly Walton to express some of these idioms in picture form.
Here they are:
1. China
2. Colombia
3. Greece
4. Hindi
5. Sweden
6. South Korea
7. Russia
8. Germany
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9. Poland
10. Japan
11. Italy
12. Portugal
13. Brazil
14. Latin America
15. France
16. China
