Maybe good to mention the Name of the Sala
Ahirajamettā - Upaṭṭhāna-Sālā
Ahi snake, Raja king (after the Parittā:
Ahimetta sutta 
), as an invitation to first develop metta toward all beings, starting with the four kinds of Nagas, of which the Deva King Naga Virupakkha, protector of the Dhammain the west, is the Deity of this Nagaraja mountain, and father of Neang Soma, the Naga kings daughter, first Queen of the Khema-dynasty.
Especially because the donor fears nothing more then snakes, may it give way to develop metta and overcome fear and danger by it.
user:johann:gallery:various:virupakkha.jpg