One’s thoughts and utterances travel in the form of vibrations and continue to exist (Akshar). Vibrations of similar thoughts and words of any other person pertaining to us merge with them. When these vibrations gain sufficient strength, the thought becomes a reality. Such a situation cannot differentiate between good and bad. One’s positive thoughts also fructify and so do the negative ones. The mind creates a chain of such wishes. All these wishes lined up in a queue are then experienced one by one. If one expresses a wish today, it stands at the end of this queue. Wishes expressed earlier fructify earlier. A wish which is on the verge of becoming a reality fructifies only if the required energy is available in the subtle body. Otherwise, it remains in waiting even when it is due. Since Atma is imperishable this process continues over many births. Thus, wishes, expectations and ambitions keep getting realized over time. When a particular wish is fulfilled, that energy is converted into the physical body and the subtle body becomes vacant to that extent. That is the reason why one feels light when any wish gets fulfilled. As long as such thought energy remains accumulated in the subtle body, the physical body experiences energy deficiency. This leads to disease.