Today marks the festival of Dipavali. Dipavali [Diwali} Sunday, October 30, 2016 [Mayapura, West Bengal, India time]. The Dīpāvalī festival takes place on the dark-moon night in the month of Kārttika (October-November).
Diwali or Deepavali is the Hindu festival of lights celebrated every year in autumn in the northern hemisphere (spring in southern hemisphere) is one of the major festivals of Hinduism. It spiritually signifies the victory of light over darkness, good over evil, knowledge over ignorance, and hope over despair. Its celebration includes millions of lights shining on housetops, outside doors and windows, around temples and other buildings in the communities and countries where it is observed. The festival preparations and rituals typically extend over a five-day period, but the main festival night of Diwali coincides with the darkest, new moon night of the Hindu Lunisolar month Kartika in Bikram Sambat calendar. (excerpted from Wikipedia)
Although we do not celebrate in typical Hindu fashion, we do honor Dipavli as Srila Prabhupada has explained that the actual meaning of Dipavali celebration is Lord Krsna breaking the pot of yogurt and being bound by Yasodamayi.
Srila Prabhupada Explains Dipavali (Diwali)
…Śrīla Viśvanātha Cakravartī Ṭhākura, quoting from the Vaiṣṇava-toṣaṇī of Śrīla Sanātana Gosvāmī, says that the incident of Kṛṣṇa’s breaking the pot of yogurt and being bound by mother Yaśodā took place on the Dipavali Day, or Dīpa-mālikā. Even today in India, this festival is generally celebrated very gorgeously in the month of Kārtika by fireworks and lights, especially in Bombay. It is to be understood that among all the cows of Nanda Mahārāja, several of mother Yaśodā’s cows ate only grasses so flavorful that the grasses would automatically flavor the milk. Mother Yaśodā wanted to collect the milk from these cows, make it into yogurt and churn it into butter personally, since she thought that this child Kṛṣṇa was going to the houses of neighborhood gopas and gopīs to steal butter because He did not like the milk and yogurt ordinarily prepared. (from purport to SB 10.9.1-2)
Full text and Purport More
The Hare Krishna Movement 