Understanding how recursive functions work

Question

As the title explains I have a very fundamental programming question which I have just not been able to grok yet. Filtering out all of the (extremely clever) \"In order to

Answer 1

There are already a lot of good answers. Still I am giving a try.
When called, a function get a memory-space allotted, which is stacked upon the memory-space of the caller function. In this memory-space, the function keeps the parameters passed to it, the variables and their values. This memory-space vanishes along with the ending return call of the function. As the idea of stack goes, the memory-space of the caller function now becomes active.

For recursive calls, the same function gets multiple memory-space stacked one upon another. That's all. The simple idea of how stack works in memory of a computer should get you through the idea of how recursion happens in implementation.