Blessed indeed is that fortunate soul who can observe the month of Kartik in Vrindavan dham - the month of Damodar bringing 1000 times more spiritual benefit!
This month commemorates how mother Yashoda was able to bind the Supreme Personality of Godhead Shri Krishna with the ropes of her love and affection. The same Supreme Lord, whom neither Lord Brahma, nor Lord Shiva, and not even Goddess Laxmi can ever bind, was bound by the selfless pristine parental love of Mother Yashoda.
Vrajendranandan displayed transcendental fear from his mother and was running from her trying to escape punishment. After Mother Yashoda's endeavor and receiving the Lord's mercy, she tied Him to a grinding mortar, taking which Shri Krishna later crawled to the Yamalarjun trees and delivered the two sons of Kuber, Nalakubera and Manigriva.
This month is also known as Urja vrata. Urja means shakti and refers to Shri Krishna's internal potency which is none other than Vrindavaneshwari Shri Radha, and thus she is the predominating deity of this month of Kartik. The glorification of her transcendental name, fame, forms and qualities, is the main vrata to be performed.
The first day of the month, Sharad Purnima, is when the Sharad raas was performed and the desires of all the Gopis were fulfilled. The Gopis who had never before attained the direct audience of their worshipable Lord were purified of all traces of anarthas by the intense heat of separation and fulfilled their cherished heart's desire.
The Amavasya of this auspicious month is celebrated as Dipavali, celebrating Lord Ram's return to Ayodhya. The next day is Govardhan puja, when Brijvasis worship Giri Govardhan - Haridasya varya, the best of Vaishnavas, who serves the divine couple with streams, waterfalls, fragrant forests and caves suitable for pastimes.
Devotees from all over the world come to Vrindavan during this month to spiritually surcharge themselves. They participate in Vraj mandal parikrama, Krishna katha, Deep daan, singing of Vaishnava bhajans, Kirtan and many devotional activities for the satisfaction of Guru Gauranga and Krishna.