During the month of Shravan, occurring roughly in August, Shri Krishna plays with all of His bhaktas in Vrindavan by the door of His Lila bower, filling them with His inner nectar. During Shravan, Shri Krishna daily swings in a Hindola, which can be painted, studded with jewels or mirrors, decorated with fruits or flowers, or can be made of silver or even gold. Shri Harirayaji explains in a kirtan:

Swing, swing, swing – Beloved Krishna, swing!
A golden Hindola stands by Yamuna’s banks,
surrounded by lovely blossoming trees and vines.
Rasika Pritam sings, “When I see this, the pains of my heart are relieved.”

[excerpted from Path of Grace by Shyamdas]

They swing together, arm in arm.
Look by the door of the fresh forest bower – see the splendor all around!
Krishna first plays a full scale on His flute, then plays a protracted tone, and then softens the note.
Sings Swami Haridas, “Radha plays in Krishna’s bower.
When I behold that divine beauty, I give everything else away.”