Pauranic mantra

Puranas are secondary texts of Hindus. They are based on Vedas but are full of stories
and are poetical.
The authenticity of the puranas also is in question. Each purana claims certain things,
which are negated by the other purana. But in their ultimate content they do not differ
from  the  advaita,  though they  talk  in  terms  of  dualistic  language.  Puranas when not
properly  interpreted,  lead  a  person  to  confusion.  Sometimes  their  descriptions  are  so
exaggerated  that  one  loses  all  the  faith  in  these  books.  When  puranas are  properly
interpreted, they lead to a  vast  bank  of  knowledge through  stories and parables. Very
difficult metaphysical truths are described in easy language.
Puranas are 18 in number. There are many mantras given in these 18 puranas.
Mantras derived from puranas are called Pauranic Mantras.
Vishnu  Purana,  Padma  Purana and  Bhagavat  Purana give  lot  of  mantras  of  Lord
Vishnu and Lord Krishna. Shiva Purana, Markandeya Purana etc. give a lot of mantras
of Lord Shiva and so on