The longer a mental trend lasts unbroken, the easier it is to follow. Once a habit is formed, it becomes easier to follow and more difficult to break.
In other words, once a suggestion has been accepted by your subconscious mind it becomes easier for additional suggestions to be accepted and acted upon. That is why when you are just beginning with hypnosis and suggestion therapy we start with simple suggestions. We can suggest that you feel a tingling sensation or a warm and pleasant feeling. When these have been followed, we can move on to more complicated suggestions.