In Search of Lost Time [volumes 1 to 7]

by Marcel Proust

May you always see a blue sky overhead, my young friend; and then, even when the time comes, which is coming now for me, when the woods are all black, when night is fast falling, you will be able to console yourself, as I am doing, by looking up to the sky.”

"Remembering the blue sky" is a key point in meditation as Headspace has taught me.