What is the difference between test strategy and test plan?

One more person trying to explain me the difference between  test strategy and test plan over and over again and invariably confusing me all over again,

it was better explained as below.

Test strategy is like the document that gets written up during a traditional hindu marriage india. It clearly says who is getting married to who. Most often it does not say where, when and how.

Test plan on the other hand is like a marriage invitation.
Apart from saying who is getting married to who, it also says in detail a lot more. like where the event happens, how to get there, what number to call to get more information, what are the events that are planned and when they happen, who is performing those, who are the well wishers for the event.

Note: this is written for people who are from India. if you culturally do not understand, kindly excuse.