Dream about invisible snake is a symbol for some confusion in your thought process. You may be dealing with issues of passiveness/aggressiveness and authority/dependence. You are being overlooked in some situation. It is an evidence for your need to cultivate your sense of culture. You are feeling out of control.
Invisible snake is a metaphor for some mental problem
You are seeing things differently as you grow older and gain more experience. You feel the need to tend to everything and everyone's needs. This dream is a hint for your childish or juvenile behavior. You have been given the go-ahead to follow whatever path you have chosen or whatever decision you have made.