Vertigo is when a person feels dizzy, images are spinning around clockwise or anti-clockwise directions.

From Wikipedia.

 

Seems like, from time to time, every person experiences a vertigo. It is not always a bad thing - even on the contrary. When dizzy, it is easier to make daily routine standards go away, to find new ideas, sometimes even reinvent the new you. This feeling is possible not only by using various substances. Feeling music, nature, people or simply doing your favourite activity is enough. Characters of this series are living these moments.

Their own vertigo.