One,two,three,four...

...represents CPR.The pathwalker Jacob is propobly a memory of John and was either present at the place of the accident or in the hospital giving CPR to his wife...
"One,two,breathe,four...one...two...dont die!"

He counts 90 times to four according to IMDBs trivia and 11 times incomplete. 90 to 11.
90x4=360 (complete circle)

He changes the flow. He saves someone. Flow=bloodstream. Beating heart. 1-4 also represents music. The whole movie could be seen as a

Liev is an anagram for live AND evil. Live is evil. A leaf is pulled out of the engine. Live is pulled out of the engine = death. Predestination to die.

Ink is history. Ink is in chains. History is in chains. Predestination again. The destiny is darkness. His clothing is black. Darkness is death? Death is destiny.

Big nose=pinocchio syndrome= Lying. He is lying to himself.