Hamaaray paanv ka kaanta - The thorn in our foot

Na hum-safar, na kisi hum-nasheen say niklega
Hamaaray paanv ka kaanta - hamin say niklega

                                                      (Writer unknown)
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Translation:
Neither by a companion nor by a loved one or wellwisher can it be taken out.
The thorn in our foot* - can only be pulled out - by no one else - but us.
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~

*The foot here is used as a metaphor for the mind.

By using this analogy of foot and thorn, the writer wants to convey that No one can remove the thorns - the vices or wickedness from our minds by waving a magic wand or something.

We have to remove them ourselves and replace them with good and kind thoughts.

Gurus, teachers, wise and kind people can inspire us, motivate us - they can show us the path - but ultimately, we have to walk on that path ourselves.