Fetters and shackles arise due to grasping the aggregates.At Sāvatthī. “Mendicants, when what exists, because of grasping what and insisting on what, do fetters, insistence, and shackles arise?” “Our teachings are rooted in the Buddha. …” “When form exists, because of grasping form and insisting on form, fetters, insistence, and shackles arise. When feeling … perception … choices … consciousness exists, because of grasping consciousness and insisting on consciousness, fetters, insistence, and shackles arise. What do you think, mendicants? Is form permanent or impermanent?” “Impermanent, sir.” … “But by not grasping what’s impermanent, suffering, and perishable, would fetters, insistence, and shackles arise?” “No, sir.” … “Seeing this … They understand: ‘… there is no return to any state of existence.’”