The symbols/interdimensional scripts featured in the video are made by Bryan De Flores. Here is an extract from his webpage about these symbols:
The Language of Light began to manifest itself to me upon my awakening. It was instantly recognizable, as it is to many people, and was equally easy to write and draw. Throughout the years I have learned to decode this language and have met many individuals who can speak it and sign it with their hands.
The scripts are "living languages"; sending out resonant beneficial frequencies to all who view them. These divine scripts will greatly enhance the creative energy flowing through you and allow you clear connection with your divine heritage and soul family.
As you look at the designs allow yourself to feel the energy rather than try and figure it out through the mental body.