so each lightning node, aka computer, is basically one Bitcoin wallet, controlled by the lightning network and overseen by that network.

the BTC the lightning node operator puts into that 'wallet', is then available to trade back and forth, until the operator closes the node and removes the BTC, putting it back into his own wallet.

BTC doesn't actually move. only transaction records move and get balanced out by + or - transactions.

⚡🆒