Sleep time in which dreams occur is also down time for the intellect. Apparently while the intellect is sleeping our more fundamental psychic systems can take the opportunity to try to insert a valuable bit of information. We call this psychic.
You can and should always pay attention to dream tips both your own and others.
Peoples whose direct sensing operative levels are healthy and vibrant are always the most successful and the most visible psychic. They almost always have developed some kind of contact with the invisible intangible factors that work behind visible and tangible forces.