When you begin playing (after a length of time), you'll begin the levels with 5 lives shown in the heart-meter at the top of the screen.
If you fail to pass a level then you'll lose a life and you'll be given the chance to buy extra moves or try the level again using another life.
Each time you fail, a life is lost until you completely run out of lives and your heart-meter is empty.
You can buy extra lives if you immediately want to continue playing, or if you would prefer not to you can wait 30 minutes for a life to be added to your heart-meter.
Another great way to get some extra lives without using any precious Gold Bars is to ask for help from your fellow Candy Crush Saga playing friends. If you have linked your game to a King profile, you'll be able to connect to a family of fellow King players, who are all keen players of our games. Ask them for lives, or send them some as a goodwill gift. Pass it forward and you'll see some generous magic happen with your fellow players.
Tip: When you send lives, you don't lose any of your own, but you can only send lives if you have at least one life.
If you don't connect to King, you can also link to your Facebook profile and share the gift of lives with your friends or family who also play and have linked their game to their Facebook profile.