Happiness and unhappiness both dreams within a dream

"And when you are happy you should remember that your happiness in this life is nothing but a dream within a dream, and that the only true happiness is that found in the pure land of Eagle Peak, and with that thought in mind, chant Namu-myoho-renge-kyo." -- Nichiren

Likewise, when you are unhappy, you should remember "that your [un]happiness in this life is nothing but a dream within a dream, and that the only true happiness is that found in the pure land of Eagle Peak, and with that thought in mind, chant Namu-myoho-renge-kyo." -- commentary