The idea that the "veil is thinner" on this day, is prevalent in many world cultures.
The thing is... the veil isn't thin on Halloween. It's thin everyday.
We tend to notice it more on Halloween for two reasons: one, because we are affected by group thought, and group though is affected during this time of year: the holidays of Samhain, Halloween and All Souls all happen at the same time. Many people around the world will be focused on the spirit world, and the dark spirit world. We are always affected by group thought, because we are one of One.
Second, we tend to notice it more on Halloween, because we are more aware at this time. We are paying attention. We are turning into spirit world, and whatever we tune into or focus on is what our reality becomes.
If you're spooked and scared of how spirit world seems to get bigger and louder during Halloween, don't be.
The truth is: it's always that way. All the time.
Spirit world is active, accessible and filled with Light, if that this what you seek.
Of course, if you seek dark, you'll find that too. It's not pretty, and it's not fun... so please, stay away.
This Halloween, it is ideal to connect with your guides and angelic being, the highest forms of love and light available to you. If you need help, you can check out my course Be a Divine Conduit, which will walk you right in.