When do we need God?
Certainly, we need God during our very sad times (surrounding death and remembrance of loved ones, illness, tragedy).
And of course we need God during our very happy times (weddings, births, lifecycle events).
And sometimes we need God during our quiet times, and sometimes during our stressful times. And sometimes when there's nothing particular going on at all.
We seek God through statutory prayer in mornings and evenings, as night becomes day and day becomes night.
Most of these are transitions, and these are the times that we need God, when it helps to know that we are not alone.