It is actually not hard to read (at least in the sense of knowing what something will do when executed; getting the bigger picture takes more practice). The (base) syntax is just whitespace delimited tokens, each representing a function call (or string but we'll come to that later). So

    foo bar baz

will call the 3 functions in order

foo() bar() baz()

All functions are nullary (with side effects; these side effects determine their "true" arity). There aren't really any special characters other than whitespace so

    1 1 + print

just translates to

    1()
    1()
    +()
    print()

Function names do not have to start with a letter or be alphanumeric. I've happened to name my function so that those ending in a colon treats the next token to the right as a string instead of a function call. The [ function treats everything as strings until ] (that is a single close square bracket as a token) and puts the function in those body in a quote, effectively creating an anonymous function. So

[ foo bar baz ] bind: somename

defines a function. The equivalent in Python would be

    def somename():
        foo()
        bar()
        baz()

And you can later call somename in later functions.