Caruso - The vocal artist must remember that he does not sing with his throat but through it.
There can be no beautiful singing without a perfect tone attack. If the tone is not issued with sureness and decision,
it will be ragged and breathy, with a tendency to leave the pitch.
A calm mind facilitates the task of completely relaxing the vocal organs.
This is from the book - Caruso and the Art of Singing by Salvatore Fucito and Barnet Julius Beyer