In terms of dreams having 'no importance' - this will depend on when/where you heard information about this. Baaaack in the day, dreams were part of the prepgrogrammed nature and was the mind trying to 'make sense of itself'. This was changed quite early on in the process, where now one can use dreams to gain perspective on where one is at in one's process. So I wouldn't just dismiss them.
There's quite a long section on dream on the Destonian wiki: http://wiki.destonians.com/Dreams
and dream readings are available on EQAFE https://eqafe.com/p/dream-readings
I've had many dreams where during my 'awake' time I could see a point but not quite word it / see the whole picture, but where in the dream through symbolism my understanding of the point would come through nicely.