JF i can try and summarise what IS a very emotional speech (Other Bruce fans may know better?)
Bruce is talking about his relationship with his father and the common misunderstandings or generation gap issues. He specifically mentions his dads anger at his long hair as an example, he mentions it a few times, for instance "tucking it under his shirt" - hoping his Dad will not notice it.
The two points driven home towards the end, is his "talking to his girl all night" which is an obvious context straight into the song, but more directly is his Dad saying "that's good" when Bruce fails the Vietnam medical test, long after saying that he wants the army to "make a man out of you" & "they'll straighten you out."
It's a powerful message of a brief moment of his Dads love that he expressed verbally in spite of their turbulent relationship.
Man, I really did find that hard to explain, can anyone help?