Palm print, an identity universally represents the human race and hence is used as a metaphor for culture.
Different coloured palm prints represent the diverse (plurality) nature of various cultures and civilizations across the globe.
And the collage here is a metaphor for these interlinked cultures and civilizations.
The overlaps of the palm prints are the dialogues between the diverse cultures, that are required to achieve harmony, peace and progress of humankind.
On the whole Rapprochement of culture can become colourful and exciting, like a Palm Print Collage.