The conditions of a solitary bird are five: The first, that it flies to the highest point; The Second, that it does not suffer for company, not even of its own kind; The Third, that it aims its beak to the skies; The Fourth, that it does not have a definite color; The Fifth, that it sings very softly.
John of the CrossHe who interrupts the course of his spiritual exercises and prayer is like a man who allows a bird to escape from his hand; he can hardly catch it again.
John of the CrossThe soul of one who serves God always swims in joy, always keeps holiday, is always in her palace of jubilation, ever singing with fresh ardor and fresh pleasure a new song of joy and love.
John of the Cross