In the Trika school of Kashmir Shaivism there is a special Yantra/Mandala
called the trishulAbjAmandala
(Trisulabjamandala).
I am in search for a picture of this Mandala, and I also would like to know
if there is any Mandala one can use
instead of the Trisulabjamandala.
My idea is that because the heart is such an important symbol in Kashmir
Shaivism, there could  be a
Mandala/Yantra that expresses the same ideas as
the Trisulabjamandala but operates with the symbolism of going inside rather
than with that of going upwards.
Has someone information?

Regards,
Alexandra