Panch Koshas

According to Vedas, there are five layers of existence, called the 'Panch Koshas'.

These are :

• Annamay Kosh (Food Sheath) - Body
• Pranmay Kosh (Vital Air Sheath) - Breath
• Manomay Kosh (Mind Sheath) -Mind, Hormones, Sences of perception 
• Vigyanmay  Kosh (Intellect sheath) - Knowledge, wisdom, discrimination, discretion, focus
• Anandmay Kosh (Bliss Sheath) - Conciousness , soul, bliss, aatma

Annamay kosha is the outermost and so on till the anandmay Kosh which is the innermost layer out of these five layers or shealths of existence of a human.

Source : Vedantic Philosophy