First, in the offline wallet, You have the amount in STORAGE, You can store your coins and then send to someone if required, or, for example, for an exchanger to exchange them for some other currency!
Second, the offline wallet is at the same time software for mining new coins, mining starts working as soon as the wallet balance appears positive amount! The larger the amount and longer the purse is in the running state, the faster is mining new coins, which increase the balance of Your wallet!
Thirdly, the wallet outer, which is on Your computer no ONE has access, only YOU own them and only YOU can dispose of them! When funds for any online resource, among those people who can manage the coins you receive is also the owner of this online resource!
To begin mining on the offline wallet, You need to be there coins!
And they have to lie for some time to have Mature coins!
Mature coins in your wallet that's what's happening POS mining. It Mature coins are the capacity that bottom of the new coin. The more coins in the purse, the sooner they will become Mature and the more you can mine.
To participate in the share - you need to wait till coins Mature!