On the Day of Judgement you shall see the true believing men and the believing women, with their light shining before them and on their right hands, and it will be said to them: “Rejoice today, you shall enter the gardens beneath which rivers flow, in which you shall live forever, and that is the highest achievement.”
Meaning:-
Rejoice: feel or show great joy or delight.
Beneath: below; in or to a lower place, position, underneath