Chinta Aisee Dakini, Kat Kaleja Khaye
Vaid Bichara Kya Kare, Kahan Tak Dawa Lagaye

Translation

Worry is the bandit that eats into one's heart
What the doctor can do, what remedy to impart?

My Understanding

Discontentment causes worry and worry itself becomes the cause that creates chaos in the mind.  All peace is lost and the more one entertains the worry, the more armored 'she' becomes to destroy the very vitality of a man.  There is no doctor and no remedy for this cause. 

This is so true and can be observed by anyone in one's own affairs.

Guru Nanak in his Gurbani goes a step further:


Worry about that, that what is not inevitable
In the path of this world, Nanak, Nothing is stagnant
Whatever is born must die, be it today or tomorrow
Hence O Nanak, Sing praises of God and leave all concerns

My Understanding

Everything that comes to pass in our lives is but preordained.  This will be one school of thought which can however, make a person fatalist.  The alternative way of looking at this phenomenon will be on the basis of the laws of Karma i.e. cause and effect.  Regardless of how we look at it, the basic premise will be that Life goes on.  Hence Guru Nanak says that we should worry only about that aspect of life which is not inevitable.  Understanding the fundamental principle of the cosmos which is perpetually operating in motion, Guru Nanak makes it amply clear that in the path of this world; nothing is motionless.  All our concerns are related to our journey of life that begins with birth and ends with death. Since all that is born is mutable, hence must die, therefore, says Nanak sing praises of God and worry not.  Sing praises of God here will imply to accept and face all aspects of life.  Only by total acceptance of life as it is can one live without worries.