What’s the Difference Between Book Blurb and Synopsis?

Both project the book to different sets of readers. A book blurb SHOULD NOT contain the conclusion because it is a sales pitch, while a synopsis is a 200-word version of the book itself. Here's the elaborate version.

I am Your Echo

I have this to say to my parents and gurus: Flowing through the air are the glowing ashes of my smoldering. If the smolders of karma be my destiny, then I am your echo. ... Singing through the dark woods are the verses of this destiny. To make this song of life melodious, I am [...]