We are all made of energy.
Every material is energy. Everything has an energetic field and sends information through the field. There are names for this field. The biologist and author Ruert Sheldrake researched these fields, called morphic fields. Usually we call this field aura, although it is only part of the aura.
Every field can be influenced and we constantly create new energetic fields through the energy that we send out. Every thought, word and feeling vibrates in a certain energy pattern. When we generate enough energy, we create an energetic field with it.
This is the reason why it is pointed out again and again that our thoughts and words create everything.