I don’t know what kundalini is.
Sri Ramana Maharshi :
Kundalini is one name
given by the yogic people for
what may be called the atma sakti inside the body.
The vichara school calls the same power jnana.
The bhakta calls it love or bhakti.
The yogic school says that
this power is dormant in muladhara
at the base of the spinal cord and
that it must be
roused and taken through the various chakras
on to sahasrara at the top,
in the brain,
to attain moksha.
The jnanis think this power is centred in the heart, and so on.
~ Day by day with Bhagavan, 11-11-45