You do not have to worry about white space in your code. But, it is possible to take advantage of it to increase legibility.
For example, indentation...
for a = 1 to 20
` print hello twenty times
print "Hello"
next
While indentation may seem trivia here, when your main loop grows to ten or twenty pages in size, it can be a life saver. Where strings of characters are involved, white space is important as well.
for a = 1 to 20
` print hello twenty times
print "H e l l o . . ."
next
Text between quotes is treated literally in most cases.
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TAZ