I have crossed a vast river with a group of people, and we are just settling in. I tell somebody I am going down to the shore to destroy the boats.
The sense in the dream and after I woke up is that the river is the river of Samsara, of blind identification with our human self, with a segment of Spirit, the field of awake emptiness and form. The river is so wide that it forms the horizon. There is a sense of quiet calmness in destroying the boats, we all know it is a good thing to do.
Although it doesn't quite seem that I am on the other shore yet, it seems important to destroy the vehicles that can bring me back in the other direction. These days, I am more acutely aware of the identities I still hold onto which splits the world into I and Other, and the importance of seeing through them.
The dream has a slightly dualistic feel to it (awakening good, delusion bad), but it has a Manjushri's sword feel to it as well, decisively cutting through delusion.