This is a door. You could say that it is an external path. It leads from one place to another.

  
No matter how many physical doors I pass through, and no matter how many physical places I visit, I will NEVER find enlightenment. 

Enlightenment can only be found by following internal paths; spiritual realisations conjoined with renunciation (the determination to leave samsara, understanding the samsara is the nature of suffering). 

May we all follow internal paths to enlightenment.