Family reality refers to relatives.
Loading things in a car means you have something in your head.
Pretending to be a lot of dead people means that there are many conservative, stubborn and stale things in your mind, so there are many dead people to replace them in your dreams.
The locomotive refers to the human brain, the warehouse refers to the thoughts in the brain, and the goods refer to the state of mind.
To put it simply, which of your relatives do you think is too stubborn and decadent?