In a blender, combine mango and coconut milk, plus the lime juice if you're using.
Once fully pureed, pour into a container with the chia seeds and carefully stir.
Cover and refrigerate for at least four hours or overnight.
Optional: top with whatever fun garnishes you want! I used whipped coconut cream, fresh mango, lime juice. You can top with more seeds, nuts, any kind of fruit or whatever you want!