The Clue Saintly glow, like behind Sai Baba's picture
The Answer HALO
The word "halo" refers to a circle of light that often appears around the heads of saints in art. This glow symbolizes holiness and divinity. In the context of Sai Baba's picture, a halo can represent his saintly nature. Therefore, "halo" perfectly fits the clue about a saintly glow.