jālaśambaramahātantre śrī bālā hṛdayam

The heart of Bala, from the Jalashambara Mahatantra. The viniyoga names Sadashiva as the sage, anushtubh as the metre and Bala Tripurasundari as the deity, and states its purpose simply as her pleasure. The opening meditation sets her in the middle of a shining disc, her face a quivering moon, her light like heated gold — the young, bright, unfrightening form that separates Bala from the fiercer goddesses she is grouped with. What follows is the hridaya proper, the inner core of the mantra worked out at length, and the text closes by saying why it has been given at all: therefore, goddess, having understood, let one repeat the mantra with every effort; he attains every accomplishment and is happy at all times.