Deriving from the word “thyself” this is simply our “modern” way of spelling it. Doesn’t look so old anymore right? We like the way it looks and sounds this way.
THEYSELF, is you within. This is not about being “caught up in yourself” but this is about knowing yourself.
THEYSELF - is also a duality. Referring to everyone outside of us and how we’re all connected. Showing love to others is ultimately showing love to yourself.