Can you explain or send me to a link so I can learn more about this and to store my coin. Thanks
Cold storage means that your wallets private details such as seed/private keys have never been sent or viewed online and have never left the safety of the device, like in the case of hardware wallets. A paper wallet is another good way of storing your keys.
You can read more about that here:
https://en.bitcoin.it/wiki/Cold_storageAlso have a look at this thread:
https://bitcointalk.org/index.php?topic=2865766.0