Finding, or being found, can have different meanings in the Word, depending on the context. Here are two examples:

From Arcana Coelestia 5756, 'Behold, the silver which we found in the mouth of our pouches' means when truth freely given.

In Revelation 18:21, we find this: "And one strong angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall that great city Babylon be cast down, and shall not be found any more." Here, "to not to be found any more," signifies not to rise again, according to Apocalypse Explained 1183.

It's pretty easy for most people to read the Bible and get a sense for what “sheep” means without any help. They are simple, peaceful, trusting and willing to be led, and the image of the Lord as both a shepherd and a lamb reinforces a sense of innocence. And indeed, sheep represent people who desire what is good, to be good, and to do what is good. Arriving at such a state requires the work of a lifetime -- learning what's right, setting aside what's evil, determining to follow the Lord -- but once we arrive at such a state, we can be cared for by the Lord in peace.