Paramesthi, or Paramestha, is a term used to refer to Hindu God Brahma. The term means spiritual teacher. It must be noted here that the term Paramesthi is also used to refer to Shiva, Vishnu, Garuda and Agni.
In the works of Kalidasa too Brahma is referred as Paramesthi.
The term means that Brahma is the spiritual guru who can help living being attain the ultimate bliss – reaching the abode of Paramatma.