"Passage" can have a lot of meanings depending on context:

• "il est dans le passage précédent" = "it is in the foregoing passage" (text)
• "il est sur mon passage" = "he is on my path"
• "je navigue dans le passage nord-ouest" = "I am sailing in the northwest passage"

It can, depending on context, that it means that you are standing where you should not.