Halakhah su Salmi 141:76

On the train from Luban to Riga, in Lithuania, Rav Moshe woke up with a pasuk from Tehillim (141:6) running through his mind, ושמעו אמרי כי נעמו, "they will hear My words because they are pleasant," which he interpreted as a message from Hashem that all would be well.