Thy true substance is concealed in falsehood, like the taste of butter in the taste of buttermilk.
• Thy falsehood is this perishable body; thy truth is that lordly spirit.
• (During many) years this buttermilk, (which is) the body, is visible and manifest, (while) the butter, (which is) the spirit, is perishing and naughted within it,
• Till God send a messenger (prophet), a (chosen) servant, a shaker of the buttermilk in the churn,
• That he may shake (it) with method and skill, to the end that I may know that (my true) ego was hidden;
• A (great) shaking was required in the effort that the buttermilk might render back that butter from its (inmost) heart.
• That which seems to you to be (really) existent is (mere) skin, while that which seems to have perished—that (in reality) is the root.
• Hark, turn it knowingly from hand to hand (side to side), that it may reveal that which it has hidden;
Rumi

جوهر صدقت خفی شد در دروغ
هم‌چو طعم روغن اندر طعم دوغ
آن دروغت این تن فانی بُود
راستت آن جان ربانی بود
سالها این دوغ تن پیدا و فاش
روغن جان اندرو فانی و لاش
تا فرستد حق رسولی بنده‌ای
دوغ را در خمره جنباننده‌ای
تا بجنباند به هنجار و به فن
تا بدانم من که پنهان بود من
جنبشی بایست اندر اجتهاد
تا که دوغ آن روغن از دل باز داد
آنک هستت می‌نماید هست پوست
وآنک فانی می‌نماید اصل اوست
هین بگردانش به دانش دست دست
تا نماید آنچ پنهان کرده است

مولانا