There are numerous types of abhishekam on a Shivling. One of
the rarest abhishek is pouring milk mixed with saffron on Shivling. Mixing
saffron to milk will give it a yellow color. This abhishek is performed to
overcome financial difficulties.
There is a belief that such abhishek as the blessing of
Shiva and Vishnu.
White is the color associated with Shiva. Yellow is the
color associated with Vishnu. Thus a devotee gets the blessing of both Shiva
and Vishnu by bathing a Shivling using milk mixed with kesar or saffron.
Bathing black Shivling in temple or home or sacred place using
milk and saffron helps in overcoming all money related troubles.
In some regions, saffron is replaced with turmeric powder.
In such cases, a person gets the blessing of Shiva and Shakti. Turmeric is
associated with Mother Goddess Shakti.