I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.
If we ever established contact with intelligent life on another world, there would be barriers to communication. First, they would be many light years away, so signals would take many years to reach them: there would be no scope for quick repartee. There might be an IQ gap.
There is a universal, intelligent, life force that exists within everyone and everything. It resides within each one of us as a deep wisdom, an inner knowing. We can access this wonderful source of knowledge and wisdom through our intuition, an inner sense that tells us what feels right and true for us at any given moment.
Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.