Find a long-lost dream thing - in reality lose something and did not find.
Finding something after a deliberate search in a dream signifies that we have enough spiritual awareness to move forward. Finding something by chance suggests an element of spiritual assistance. A found object is something to be treasured. The mind has an uncanny knack of drawing our attention to what needs to be done to enable us to achieve our aims. It will use hiding, searching and finding as metaphors for effort we must make in the waking state. So to find something without having to make too much effort would show that events will take place that will reveal what we need to know. If we dream of finding a precious object, we are becoming aware of some part of ourselves that is, or will be, of use to us. We are making a discovery or a realization, which may be about us or about others.
To lose.
Lose.
Something — success.