In a world crowded with symbols, what do the red cross, red crescent and red crystal mean?

They are symbols of protection that international law gives to the wounded and sick, and those caring for them, in armed conflict. They tell those fighting that they must not attack anyone or anything that displays these emblems.

The symbols can also show a connection to a red cross or red crescent organization, when integrated into their logos. They help people know they are humanitarian organisations, helping people in natural disasters, times of war or other emergencies. Purely based on need.

The emblems are not religious symbols. They serve humanity. They are a symbol of protection and a sign that help is at hand. They are also a sign of hope, and must be respected.