What happened when Schubert wrote "Lullaby"?

Schubert lived in poverty at that time. One night, he didn't eat and wandered the streets hungry, praying that he could meet an acquaintance and borrow some money to eat, but he didn't meet the acquaintance. At this time, Schubert walked to the door of a luxurious hotel, walked in, and sat down at a table. He suddenly found an old newspaper on the dining table, and Schubert picked it up and read it. He saw a small poem on it: Sleep, sleep, my dear baby, mother is shaking you gently with both hands... This simple and moving poem touched Schubert's heart, and a loving mother appeared in front of him. image. On a quiet night, the mother gently patted her child to sleep and hummed a lullaby softly. The bright moonlight shone on the mother and child through the window. He could no longer control his excited emotions and instinctively turned his thoughts away. Go into the poetic mood. He was imagining and thinking endlessly. He took out a piece of paper and a pencil from his pocket, humming and composing rapidly.