Dreaming of being wealthy is to dream of having in abundance those things that we need. We have possibly come though a period where we have put in a lot of effort and to dream of having a great deal of wealth indicates that we have achieved what we have set out to do.
A mortgage in dreams can suggest a false sense of security in that we apparently have access to a resource that is only comparative in value and not readily realized.
If we are aware of our goal in making savings in a dream we should perhaps be making long-term plans in waking life.
If we are giving our savings away, we no longer have need of a particular practical resource.
The entries for debt, lend / lending / loan and money should help with clarification.