It seems that the whole of humankind is constantly going in and coming out.
An ongoing transition from one to the other; a smooth and unstoppable segway of there and back. He is going into the bathroom to shave. She is coming out of the laundry to hang clothes. They are going into the changing rooms to shower after the game. He is coming out of the study to answer the doorbell. She is going into the bedroom to change the sheets. They are coming out of the stadium after watching a match. He is getting on a train to go to work. She is getting off a bus having done her shopping. They are going into the booth to take photos. He is coming out of the bus station to walk to work. She is going into the phone box to make a call. They are coming out of the courthouse after an adjournment.
He is going into hospital for a hip replacement. She is coming out of the library with a new book. They are going into the church to be married. He is going out to the garden to prune bushes. She is going into the kitchen to toast bread. They are coming out of the fire station at the end of their shift. He is going into his classroom at school. She is coming out of the post office with a package. They are going into the hotel with their luggage. He is coming out of the club rooms after playing golf. She is going into the clinic to get a blood test. They are coming out of the temple after prayers.
To and fro we go, seemingly without end.