We must all understand the nature of thought and phenomena. Each thought has its own brain wave. It has its own energy.
First, thought is energy. Secondly, a physical body and material things are also energy. So, physical things are forms of energy. Thirdly, energy cannot be separated. Whenever the thought is there, the whole picture is already there because the energy is one inseparable whole.
Thought, action and reactions all manifest from the same source simultaneously. To understand this, simply see them as different aspects of the totality of energy manifestation.