Dream of

I was taking a trip on a train but first I got on a elevator to go up the train , after I got of the elevator I was walking threw a corridor where there were people who was also going to travel also on the train , someone was talking about something that reminded me that I had forgot my purse, so I went to go get back on the elevator to go back down to go home to get my purse so I could come back and get on the train before it leave.