A soliloquy in a drama is a passage where a character expresses his thoughts or feelings out loud, while either being alone on the stage, or with other actors who keep quiet. Surely you know one of the most famous soliloquys of all time - <em>To be or not to be, </em>from Shakespeare's Hamlet.
If you were to leave out a step or go in the wrong order, it might be confusing for readers. So it is important for you you to go in the correct order for it to be a good piece of writing.