Nothing. It just means that the puck is behind the opposing team's net. There is space between the net and the boards unlike a soccer field.
The zones on a official hockey rink are the defending zone (where players try to defend and protect their goal or net), the neutral zone (where is the center zone and players try to get the puck in the their opponent's defending zone which is also their attacking zone and where players get the puck out of their defending zone) and the attacking zone (where players try to get the puck in their opponent's goal or net).
The regulation net is 6ft by 6ft with the net being drawn 7ft behind the goal making a pyramid shape.
The net at the end of the goal.
For excitement. No other real reason. Also to make fans aware puck went in net. But it creates excitement. Officially the red light goes on behind net turned on by goal judge. and referee.
Providing the player is at no time offside, then yes.
where u score a goal in your net
The Goal Shooter and Goal Attack can shoot.
A goal is where a football player scores a goal with there foot into a white net.
To get the ball in the other teams goal net, while defending your own goal net.
Behind the goal. Gretzky was so skilled behind the net, especially with his wrap around goals, the area became widely known as 'Wayne Gretzky's Office'.