Its always good to ask your partner first, but what if you dont have one / they are not responding properly?? - Checkpoint - Policy Synchronisation

How you will update the changes happened when you were out of home...

I would say its always good* to ask your better half .. Dont worry if they are not reponding / you dont have one, its temporary,,,!!! You can ask someone you trust (in Checkpoint its SCS)....

The same thing is happening when your cluster member returns/recovers in clustered environment of checkpoint..

When a failed cluster member recovers, it will first try to take a policy from one of the other cluster members. The assumption is that the other cluster members have a more up to date policy. If this does not succeed, it compares its own local policy to the policy on the SmartCenter server. If the policy on the SmartCenter server is more up to date than the one on the cluster member, the policy on the SmartCenter server will be retrieved. If the cluster member does not have a local policy, it retrieves one from the SmartCenter server. This ensures that all cluster members use the same policy at any given moment.

*Applicable for only who trust their partner :-p