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 is common in the Bible for people to "rise up," and it would be easy to pass over the phrase as simply describing a physical action. But in fact it represents an elevation in spiritual state, moving to a more internal frame of mind closer to the Lord. Often it has to do with understanding a new or important idea; we "rise up" to a state of greater perception and enlightenment. Obviously context is crucial to the exact meaning of the phrase in a given passage -- it matters greatly who it is that is rising up, and why.