Flight
"The soul that is attached to anything, however much good there may be in it, will not arrive at the liberty of Divine union. For whether it be a strong wire rope or a slender and delicate thread that holds the bird, it matters not, if it really holds it fast; for until the cord be broken, the bird cannot fly.”
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John of the Cross, Mystic
Many great religious traditions teach the value of detachment. What do you need to loosen your grasp on so that you can fly?