Here is an explanation that people that are completely anti "new age"(Kind of funny that "new age" has the same mainstream negative meaning as "Conspiracy" does.

Our bodies are made up of negatively and positively charged particles. (EVERY PART OF OUR BODY there is NO matter it is only interpreted as having substance to make up our senses)Look it up.

These negatively and positively charged particles make up not just us as humans but everything we can sense as well. This includes IDEAS and THOUGHTS. Whenever we attribute something as Meaningful and Beneficial and Loving and Powerful it affects our Particles to react in a positive way.

Now since there is not "Matter" there is no "Space" between people on this planet. Air molecules and walls separating people are just Energy Particles as well.

So, if you have a wonderful day and people watch you with a smile on their face they start to feel better. This is because you are so full of love and peace that day you are a shining beacon of energy that is full of what people want.

Now, When we as a whole apply a meaning to a certain date and it is known in mass as a happy date it creates more profound happiness on that date because large groups of people around the world are focusing their beautiful beneficial energy for all to share.

The point where "God" comes in or "Entities" is the simple fact that there is more energy out there that we cannot perceive because our senses are not attuned to observe that energy.

So people that have trained their mind through meditation and practice have become able to sense energy and become a node for unobservable fields of energy.

The only way this is possible is because ITS ALL MADE OF THE SAME SUBSTANCE. ENERGY.

Hope this helps :)