I told my brother he understood it quickly. I think understanding it would have a few reasons of the following. Probably depends on age (my mom would be harder do to having dreams that just happen not dreams she controls or becomes aware the younger excepting something new comes easier such as an instrument) vs. personality (if a person is hot headed or so on and believes in it not being true then chances are it wont get though example my step dad or grampa or if a snobby popular person example a celebrity they probably wouldnt even care and may make fun of you....) vs. culture (if some lives in an area were people don't know what a dream is in the first place then you would have to explain a dream which would be a task which would think would fail). This is just my opinion have not told my mom, step dad, or me grampa my brother did and we are both trying at it now.