Today is the 86th Anniversary of Sri Sarada Devi's Mahasamadhi.
Here is a quote from: "In the Company of the Holy Mother" available at all Vedanta Centres:
"On Tuesday, July 21, 1920, at half past one in the morning she breathed heavily several times and entered into a deep samAdhi from which she never returned to the consciousness of the physical world. Peaceful sleep settled over her body, ravaged by long illness, which now suddenly relaxed and gave off a celestial light. Many of her disciples were deceived by this light and thought for a time that she was still with them.
The body, decorated with garlands and flowers, was taken to Belur Math, across the GangA, and cremated on a pyre of sandalwood. Now a white temple stands on the spot, in loving memory of her immaculate life."