How to paint illusions?..  

(The photo is by Skylar Kang)

Illusions that he/she loves me. 

Illusions that youth will last forever and I still have plenty of time. 

Illusions that the world is peaceful and prosperous. 

Illusions that this war will end one day. And that this jerk will never drop a nuclear bomb on the world. 

...How to depict the unpaintable?..