The main shape of the logo is eye. Eyes are used to see things around us. In this case, the eye is a tool to see various cultures in this world.
In this logo:
the eye is formed with two hands hold the world,
the world as representation of black part of the eye,
the above eyelash is people holding hands together, the below one is the festival title.
the people holding hands in many colors represent various kinds of culture we have in the world, which has to be seen as our richness and it's our duty to preserve this cultural diversity on behalf our next generation.