The light bulb is meant to symbolise the ideas and the conscience, which are the causes of Patrick Zaki's detention.
The hand approaching the light bulb can symbolise both the violence of the system that stole Patrick Zaki's freedom or the civil society trying to destroy the cage in which the student is trapped.
This poster belong to
Free Patrick Zaki

The call for entries to “Free Patrick Zaki, prisoner of conscience”, a special edition of Poster For Tomorrow, will be open from 8 to 28 January. The competition is organised by Amnesty International Italia, Conversazioni sul futuro, Diffondiamo idee di valore in collaboration with Alma Mater Studiorum - University of Bologna, Articolo 21 Association, Human Rights Festival
and with the support of numerous public administrations and other
partners.