Of course your dream starts off in a place of learning, because your mind is trying to teach you something. The crane is a representation of the size of the hardships that you must overcome in life, and the clandestine organization represents your friends and family whom will help you along the way, but must never know the true nature of your issues (the only important part of CT5 is the 5, but I'll leave that up to you to figure out).

The crane in Spain indicates that you feel that your hardships are rooted in sources outside of your immediate control, and have so far not been identified, although their effects are apparent and you must strike out in their general direction to resolve them.

At this point your mind decides to tackle another problem: the destruction of the biscuit factory is telling you that you fear for your long term health and safety, but your concerns are rooted more in the potential cost of ongoing healthcare rather than any specific medical issue.

Finally, the fact that the bomb was dirty indicates that you must finally break down and clean out the dark recesses of your fridge, or you may never want to open the door again.