Krishna when having to establish religious principles 5000 years ago , had to fight with Jarasandha and his huge army , Krishna defeated them one by one having invited Jarasandha to bring more and more armies , as the eighteenth battle was about to take place, Kalayavana turned up in support a formidable warrior with 30 million troops . In order to counter act the two armies Krishna had almost instantly the huge city of Dwarka assembled to protect the citizens, with the help of the best of the demigods.
In current times many many Demoniac armies are assembling repeatedly all over the world with the ultimate motive of destroying truth , justice and traditions of theologically based culture’s, but the ‘ city like ‘ Sankirtana movement of Sri Caitanya Mahāprabhu will offer protection from the fraudulent conclusions of the materialistic playmaker and as Srila Bhaktivinod Thakur predicted the supremely wise Vedic conclusions that incorporates every sincere scientific theological thinker , will be established by the means of greater intelligence and objective truth.

The battle was about to take place in Mathura , but while the residents slept, they were all transferred to the newly built city in Dwarka by Yogamaya

We should allow Krishna to direct us , not remain in a secretive place.

The great Sanskrit scholar and connoisseur of Bhakti rasa Srila Visvanatha Cakravati Thakur, says the world’ guha ‘ is sometimes metaphorically referred to as a cavern, when applied to the heart , a deep and secretive place .
But one should know although The Supreme Personality of Godhead respects our secretive nature , He sits in our heart , He knows everything and is facilitating everything in our lives allowing us to be fools or bringing us to an enlighten state should we so wish .
http://www.thevedicspectator.com