Anas ibn Malik reported that the Messenger of Allah, sallallahu alayhi wa sallim, said, “When the Qiyamah (end of the world and Rising) comes upon one of you while holding a sapling, then let him plant it.”
A clear message from the Rasulullah, sallallahu alayhi wa sallim, about action in this world and its relation to the next. A sapling, of course, needs time and conditions to grow to its fullness and it may seem pointless to bother with it when there is no time left and no earth to grow it in. But he, sallallahu alayhi wa sallim, never said anything without purpose or meaning, and he helps us understand the nature of this world and the next and their relation to time/beyond time.
Hajj Issa - for the Fuqara 