Vessel of balon

A brazen head. Engraved with sigils. Emblems
The essence of ancient planets sealed within
When the moon is old
Shall evoke the servitors
I bid you enter this vessel
Feast upon the essences you so desire
Cast forth from the hosts
That serve your master
Behold your signs look upon this image
For it awaits you in silence
I have fashioned thee with my art
Unveil the secrets hidden
In the world of man
And the realm of Elemental Spirits