Why did Maharaj sleep on a plank hanging from the ceiling, and what was the deal with the four lamps?

In the Masjid where he stayed, which was in a dilapidated state, Maharaj was given a thick wooden plank by Nanasaheb Dengle so he wouldn't have to sleep on the ground. However, Maharaj used it in an unexpected way. According to Chapter 0, he hung the plank from the rafters with old rags and slept there. While sleeping on this hanging plank, it was his practice to place four lit lamps at the four corners. The source does not specify why he chose to use the lamps, only that he did so. This entire spectacle drew many curious onlookers.