Six at the beginning means:

If the wanderer busies himself with trivial things,
He draws down misfortune upon himself.


A wanderer should not demean himself or busy himself with inferior things he meets with along the way. The humbler and more defenseless his outward position, the more should he preserve his inner dignity. For a stranger is mistaken if he hopes to find a friendly reception through lending himself to jokes and buffoonery. The result will be only contempt and insulting treatment.