Arcana Coelestia # 3202
3202. 'Rebekah lifted up her eyes and saw Isaac' means a reciprocal directing by the affection for truth. This is clear from the meaning of 'lifting up the eyes and seeing' as directing the attention, dealt with above in 3198, here a reciprocal directing because it has been said already of Isaac that he 'lifted up his eyes and saw', and now here it is said of Rebekah that she 'lifted up her eyes and saw Isaac'; and from the representation of 'Rebekah' as the affection for truth, often dealt with already.
Gate
Gates" in ancient times had a significance that does not hold in the modern world. Cities then were enclosed by walls for protection; gates in the walls let people in and out to do their business, but were also the weak points in the cities' defenses. In the Bible, cities on one level represent the minds of individual people. On a broader level, they represent beliefs shared by a community. The gates, then, represent openings where the Lord can feed us an understanding of truth and a desire for good. They also represent points where the hells can invade and sway us with false ideas and evil desires. We are kept in balance during our lifetimes, with influences from both the Lord and from hell. Ideally, we will over our lifetimes continue to invite the Lord farther and farther in and drive the hells back until ultimately the Lord can occupy our minds completely. And that point our belief in Him and His power and love will hold the gates and deny evil any entrance. As individuals, we at that point become angels. As communities, we at that point become part of the Lord's church. And at that point the gates become an entry point, introductory truths that allow people to enter churches and start bringing the Lord into their lives.