Question About Paypal Primary e-mail

I saw there is an option about primary e-mail. what is the use of that? there i can add few email address and i can make one primary. is it for only email change? like my current primary email on paypal is: now i change the primary email address and make primary. so everything will be changed? like if someone want to money to me it should be ? and if paypal send me any e-mail, will it sent to ? also if i use forgot password or anything else which require my email it all will use new email and there will be no connection with old email: ?

also:
primary emai:
and i have added other few email:



now if someone send me money to

will i receive money?

 

Yes to all of your question