Shall not a Christian account it an unchristianlike spirit to be overmuch dejected by any affliction whatsoever? I remember someone compares murmuring spirits to children, when they are weaning: what a great deal of stir you have with your children when you wean them! How perverse and vexing they are! So, when God would wean you from some outward comforts in this world, oh, how fretting and discontented you are! Children will not sleep themselves nor let their mothers sleep when they are weaning; and so, when God would wean us from the world, and we fret, vex, and murmur, this is a childish spirit.
–Jeremiah Burroughs, The Rare Jewel of Christian Contentment