I do not believe in limitations. This is because I subscribe to the belief that thoughts matter. Not just certain thoughts, but all thoughts are important. The ancient peoples in the world understood this. For years, modern science challenged this notion, but now is giving way to proving scientifically that what we think can affect a great deal of our circumstance and surroundings.
Thoughts have form.
Not a form we can see with untrained, naked eyes, but a form that is viewable only in the psychic plane. For example, we can feel the force of energy of someone who is going through an exceptionally bad day or good day. They speak harshly, and seem to be in a fireball of negative energy and disrupt those around them. Their thoughts are creating their self-destruction. Similarly, someone who is having a terrific day walks into the room, and it feels as if the shutters open and sunlight shines all around them.