One should eat ghee and jaggery before the first hour of the day. When the wind enters suṣumṇā, kevala kumbhaka arises.

A verse with practical indications and description of the attainment:

Ghṛtaṃ guḍaṃ ca — ghee (clarified butter) and guḍa (brown sugar, jaggery). This combination appears frequently in haṭha yoga texts as recommended diet:

• Ghee lubricates, nourishes tissues, calms vāta
• Guḍa provides quick energy

Adhvā-prathama-yāma-ge — before the first part of the path/day. Indicates early morning practice on an empty stomach except for this light food.

Vāyau praviṣṭe suṣumnāyām — when prāṇa enters suṣumṇā. This is the central event of all haṭha yoga: prāṇa leaves iḍā and piṅgalā and flows through the central channel.

Kevalaḥ kumbhakaḥ — absolute kumbhaka, spontaneous retention. It is not voluntary retention but the natural cessation of breathing when prāṇa becomes still.