Salutations to Śiva, the Guru, whose nature is nāda, bindu, and kalā. Whoever is eternally absorbed in Him attains the immaculate state.

The fourth and final chapter opens with an invocation to Śiva as cosmic Guru, identified with three subtle principles:

• Nāda — Primordial sound, cosmic vibration
• Bindu — Point, the concentration of energy before manifestation
• Kalā — Division, the sixteen phases of the moon, aspects of Śakti

These three represent increasingly subtle levels of manifestation.

Nirañjana-padam — the immaculate state, unstained, beyond all qualification. This is the goal of the samādhi described in this chapter.

Nityam tatra parāyaṇaḥ — whoever is constantly (nityam) absorbed (parāyaṇa) in that principle. Occasional experience is not enough; continuous absorption is required.

This verse signals the transition from the physical techniques of the previous chapters toward the contemplative and spiritual dimension.