Laman and Lemuel clearly catch the implication of the gulf as a separation, but are unclear of how that might translate into anything personal. Nephi explains that the gulf is a multi-faceted symbol (as are most good symbols). At the same time, the gulf stands for both a situation which is part of mortal probation, and one which will exist after judgement. Nephi begins his exegesis with the judgement, and notes that it is based on the things which one does in this life.