A clear case of aliens appear nearby you. What emotion do you feel? [9]

A clear sense of bliss. It would be the greatest moment in Human history. A visitor from another world? A s[9]ace traveling indepently evolved species that has flown to your world. The knowledge, the trading, the wars, the genocide, the xenocide...who knows. It would be so exciting and yes scary. . You have zero idea of their technologies and biology. It would bring the whole world together or tear it apart. I dont really think we're ready to deal with such a force as a spacefaring society. , now I'm thinkin[10] that....lost my train of thought. What reactions would you experience?