There are many definitions on the web available for people to look at.
First let’s clearly define what Sylphs really are.
Though usually referred by many different names (Sylphid, Silva, Nymph or Angels, Sky Spirits) the more defined term is Sylph. It is considered in mythology, philosophy, spiritualit
Web definitions of Sylph
From Matt Coffman
Watch the sky spirits kick chemtrails butt…. and no I’m not drinking the bong water… watch the video and learn something. ;0 Learn how to perceive the spirit world and join in the sky party… thanks to all of you increasing awareness… how far down the rabbit hole do you really go?
More documentation here… http://indianinthemachine.wordpress.com/2012/08/14/chemtrails-defeated-by-fluffy-sky-spirits/
Indian in the machine (more sylph links here)