There is nothing wrong with an inquisitive mind. Everything in life, even shrewd analysis of your emotional state, has a place. But questioning a moment of happiness is not just futile, it is foolish. Today, if you find yourself overthinking your current state, take a moment to simply be grateful for it. The future is being taken care of. Worrying will not get you there any faster, but it might remove the memories you can experience on the way. Notice the good and allow yourself to enjoy it.