As people are already noting, there's some pre-program (usually a "compiler") which translates the words of your program into a more long-winded "lower level" language called "machine code".
The machine code consists of very simple instructions which are already "understood" by (or at least make sense in terms of) the underlying processor. For example, an instruction which copies data out of a memory location, and into a special part of the processor (called the "accumulator" where simple arithetic can be done to it.) or an instruction to add the contents of two of the slots in the accumulator.
The complex, sophisticated programs you see (including the compilers and interpreters of higher level languages) are all, ultimately built out of these simple instructions being run millions of times.
