The details are important. We all like to know the details. We like to know the when, the where, the how, and the who. This is why GPS is so popular - when we journey someplace new or unknown, GPS gives us the details of how to get there, the quickest way to go, and what time it is estimated to arrive.
Our relationship with God is different. Even while the details are unknown, God says I know the plans and I want you to be with me - that is most important.