In in order to picture the action of a drama in your mind while reading it is important to

In order to picture the action of a drama as you read, it is important to remember the plot and add on to what happens along the way. As a writer, I suggest that you jot down notes on what happens during the story. As a reader, I suggest that you mark every place in your book that plays an important part to the plot. But keep in mind, it is important to always remember the plot and what happens during the story to picture the action in your mind. 

Hope this helps! 
Signed, Liz