The heaven above you can be open or closed, just as the door you may have to go through may also be open or closed. Your heaven is open when there is not a barrier or hindrance between God (or His Blessings) and you; and it is closed, when, due to one thing or the other, the connection between God (or His Blessings) and you is blocked. There are doors of opportunities and blessings for you, and these doors can also be either open to or closed against you due to one reason or the other.