Arcana Coelestia #3065
3065. 'Behold, I am standing beside a spring of water' means a state when within the Human conjunction takes place involving Divine truth. This is clear from the meaning of 'a spring' as truth, dealt with in 2702, here Divine truth since the subject is the Lord. The state itself in which the conjunction takes place is meant by 'standing beside the spring'; and the fact that it was effected within the Human is evident from the train of thought.
Isaiah 41:17-18
17
The poor and needy seek water, and there is none. Their tongue fails for thirst. I, Yahweh, will answer them. I, the God of Israel, will not forsake them.
18
I will open rivers on the bare heights, and springs in the midst of the valleys. I will make the wilderness a pool of water, and the dry land springs of water.