It was revealed by God to the rishis who wrote the Vedas that there are five bodies within man. These bodies exists in gradually deeper dimensions within us.
In order of subtleness these bodies are as follows:
1. The physical body, known is Sanskrit as annamayakosha
2. The pranic body, known in Sanskrit as pranamayakosha
3. The astral body, known in Sanskrit as manomayakosha
4. The mental body, known in Sanskrit as vijnanamayakosha
5. The soul body, known in Sanskrit as anandamayakosha