Happiness_in_a_Ship
A soulmate is very important.
If you and your soulmate have left each other the healthier person gets sick more often while the other member goes colorblind.
The soulmates can fix each other by coming back to each other's life. It's kind of sweet once you think about it.
How do you know if you have met your soulmate? Well, you will see little designs above their head. It would be a design that describes their personality.