Arcana Coelestia # 3137
3137. 'At the spring' means the enlightenment of them from Divine truth. This is clear from the meaning of 'a spring' as truth, dealt with in 2702, 3096, here Divine truth, as above in 3131. Because the Word is Divine truth it is therefore called 'a spring'. That 'standing at the spring' here embodies in the internal sense the enlightenment of things in the natural man follows from the train of thought; for where Divine truth is, enlightenment is there.
Come
As with common verbs in general, the meaning of “come” in the Bible is highly dependent on context – its meaning is determined largely by who is coming to whom and the circumstances of the action. In general, though, to come to someone - or to come to a place - represents the presence of one spiritual state with another, communication from one to the other and ultimately conjunction between them.