We livin' our lives to eternal our souls
This is a popular religious idea that when you die your soul will leave your physical body and face judgement to decide if you will spend your afterlife in Heaven, or in Hell. In this context, “the crossroads” is a metaphor for the point where the physical word ends and the spiritual world beings.
Specifically, he’s living in a way that will earn God’s approval aka earn his soul eternal life.
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