Arcana Coelestia # 3198
3198. 'And lifted up his eyes and sew' means directing the attention. This is clear from the meaning of 'lifting up the eyes' as thinking, dealt with in 2789, 2829; here it means directing the attention since it is said that 'he lifted up his eyes and saw' and this has reference to Rational Good to which truth from the Natural had not yet been joined.
Eyes
It's common to say “I see” when we understand something. And indeed, “seeing” in the Bible represents grasping and understanding spiritual things. So it makes sense that the eyes, which allow us to see, represent the intellect, which allows us to understand spiritual things. This can also be used in the negative, of course; the Bible speaks of people having eyes and refusing to see, and the Lord when He was in the world advised plucking out an offending eye. These represent a refusal to acknowledge truth, or being misled by falsity.