Surah 18. Al-Kahf, Ayah 61

Lit., "burrowing [into it]". Their forgetting the symbolic "fish" (see last third of note [67]) is perhaps an allusion to man's frequently forgetting that God is the ultimate source of all knowledge and life.

literally, 'the Junction of (the space) between the two,' i.e., the point at which the two seas were united.

Moses was to go and find a servant of Allah, who would instruct him in such knowledge as he had not already got. He was to take a fish with him. The place where he was to meet his mysterious Teacher would be indicated by the fact that the fish would disappear when he got to that place.