Importantly for us-- Tu B' Av
prophetically portrays the Marriage of the Lamb Of God.
http://www.hebrew4christians.com/Holidays/Summer_Holidays/Tu_B_Av/tu_b_av.html

From sunset August 2 to sunset August 3, 2012  is The Fifteenth of AV which became a holiday for Israelites after wandering in the wilderness for 40 years.

http://telshemesh.org/av/

According to rabbinic legend, when the Israelites were wandering in the wilderness, the former slaves were doomed by God to die before reaching the land of Israel. Every year on the ninth of Av, the Israelites would dig graves, lie down in them, and spend the night. In the morning, the people would arise and count themselves to see who had died that year. The story goes that in the fortieth year of wandering, the ritual was enacted, but no one died. Thinking they had miscalculated the calendar, the people slept in their graves a second night, then a third, then a fourth. On the seventh night, Tu B’Av, when the full moon came out, the people knew the decree had ended. They understood that all of them would be able to enter the Promised Land. The time of death and stagnation was over, and the time of life had begun.4 It was truly a Day of the Breaking of the Axe—a day when mortality no longer held
sway.  

Along with Yom Kippur ( Day of Atonement), there was no more joyful holy day apart from Tu B'Av for the Israelites .  It is  a most common day for the Jewish people to have their wedding on! And it's the day when the Jewish virgins go out in the fields to dance, wearing even borrowed WHITE GARMENTS and DANCE and the young men would come looking for a Bride. It remains a desired day for Jewish weddings.
  Blessings to you all, Lynnette