Are we alone in this gigantic Universe
I would say that that depends upon the definition of 'we'. If 'we' just encompasses Human being on the face of this earth then i would say that we are not alone, as there may be other manifestations of life elsewhere is other parts of the universe.
If one views the 'we' as including the divine essence inherent in this universe, we probably are alone, because i can perceive of nothing (where i am at now) as existing outside of that divine essence. The spark of our divine essence or cosmic consciousness can be linked directly to the source of all consciousness if a person engages the path of conscious self development.
If one distinguises between human being and the higher cosmic force when one says 'we', then 'we' are are not alone as there are higher powers that most people cannot directly perceive. There is energy constantly pulsing thorugh this universe.....ubiquitously. Personally i do not separate human being as being apart from this higher power. I think that we are all indirectly connected to this higher power and by our choices we can draw closer to being directly connected to the source of all consciousness.