"Upādāna is a Sanskrit and Pali word that means "fuel, material cause, substrate that is the source and means for keeping an active process energized".[1][2] It is also an important Buddhist concept referring to "attachment, clinging, grasping".[3] It is considered to be the result of taṇhā (craving), and is part of the dukkha (suffering, pain) doctrine in Buddhism."
"Upādāna is a Sanskrit and Pali word that means "fuel, material cause, substrate that is the source and means for keeping an active process energized".[1][2] It is also an important Buddhist concept referring to "attachment, clinging, grasping".[3] It is considered to be the result of taṇhā (craving), and is part of the dukkha (suffering, pain) doctrine in Buddhism."
https://en.wikipedia.org/wiki/Up%C4%81d%C4%81na