I got the same kind of feeling. This feeling of a collective we are all apart of. I've heard others speak of it and it after I had that experience and it was very profound and real. It was solidfied with the continuous message of "We are all here, we have always been here" by the "entities" I have met. I'm not sure about the YouTube video here, I tend to stay away from the Youtube info, especially on here where the rules rightfully so frown upon a lot of what is portrayed on YouTube due to the prying eye of governments and bad information on many of those videos or really lack of information that really matters. You'll find the Nexus to be much much more helpful in your quest for answers.
Peace And Love My Friend, and the best of luck on your journey's!
Travelling this journey we call life.