I'll kick off the discussion for this one!
Ever since I was a kid, I've been entranced by that distinctive 'wobble' of the percussion, it's nearly hypnotic! It adds to the cyclical nature of the whole track as an epic, anthemic mantra.
The lyrics are great, too - sort of saying everything and nothing at the same time, as if to say that all else is essentially meaningless, that all which is being said is, indeed, to give the idea and hope of peace a legitimate chance.
Contrary to the typical 'battle call,' it's a triumphant rally cry for goodness and positivity (for a change!). The composition certainly places John in the pantheon of great folk writers who could both turn in a memorable melody and issue a clarion call at the same time.
Its intentional, inherent simplicity of melody and message, like 'All You Need Is Love', shows off his brilliant songwriting skills and ability to communicate, as well as his knack for penning a timeless tune with anthemic qualities. For a song whose key element is its understated approach, its greatness cannot be overstated.
What does everybody else think?
Welcome to the John & Yoko Song-by-Song thread! 
