Please, elaborate on the opposite meaning! Dylan's poem seems much more straight forward (unlike Robert Frost's Stopping by Woods on a Snowy Evening for one)

Please, elaborate on the opposite meaning! Dylan's poem seems much more straight forward (unlike Robert Frost's Stopping by Woods on a Snowy Evening for one) For humanity it is all ephemeral/useless but give a good fight anyway. Oh vanity of vanities... If there is an alternative/hidden meaning to this poem it would be fascinating to hear about it. All critics/readers seems to think that father was indeed his own father that Dylan was writing to. Maybe it was not so?