move
撼 centers on physically moving or shaking something, often with force or emotional intensity. The single given meaning 'move' covers this idea of causing motion.
撼 combines 扌 (hand) with 感, which likely contributes both sound and the idea of being affected or moved. The character suggests moving something by hand or being moved emotionally.
The hand radical 扌 beside 感 (feeling) suggests moving something with your hand, or being emotionally moved enough to shake things up.
For カン, imagine a can being shaken and moved by a hand: can -> カン, and the hand moves the can.