English
The sixteenth is to meditate on the red flame pointing upwards. Meditate on the eight petals of the heart chakra, the four directions being A (Tibetan: ཨཱ།, Sanskrit Devanagari: आ, Sanskrit Romanization: ā, literal Chinese meaning: A), I (Tibetan: ཨཱི།, Sanskrit Devanagari: ई, Sanskrit Romanization: ī, literal Chinese meaning: I), U (Tibetan: ཨཱུ།, Sanskrit Devanagari: ऊ, Sanskrit Romanization: ū, literal Chinese meaning: U), E (Tibetan: ཨེ།, Sanskrit Devanagari: ए, Sanskrit Romanization: e, literal Chinese meaning: E). The four corners, starting from the right, are Ya, Ra, La, and Va, with blue color and pointing downwards, this is the seventeenth. Meditate on the inner circle of the throat chakra's petals being A (Tibetan: ཨ།, Sanskrit Devanagari: अ, Sanskrit Romanization: a, literal Chinese meaning: A), I (Tibetan: ཨི།, Sanskrit Devanagari: इ, Sanskrit Romanization: i, literal Chinese meaning: I), U (Tibetan: ཨུ།, Sanskrit Devanagari: उ, Sanskrit Romanization: u, literal Chinese meaning: U), E (Tibetan: ཨེ།, Sanskrit Devanagari: ए, Sanskrit Romanization: e, literal Chinese meaning: E). The outer circle is the twelve vowels excluding Ri (Tibetan: རི།, Sanskrit Devanagari: ऋ, Sanskrit Romanization: ṛ, literal Chinese meaning: ṛ) and Li (Tibetan: ལི།, Sanskrit Devanagari: ऌ, Sanskrit Romanization: ḷ, literal Chinese meaning: ḷ), with red color and pointing upwards, this is the eighteenth. Meditate on the crown chakra's petals being the vowel letters twice, with white color and pointing downwards, this is the nineteenth. Visualize a bluish-green crescent-shaped wind wheel at the anus, this is the twentieth. Focus the mind on the Om (Tibetan: ༀ, Sanskrit Devanagari: ॐ, Sanskrit Romanization: oṃ, literal Chinese meaning: Om) at the navel chakra, this is the twenty-first. As the breath goes out, visualize the letters of the chakras gradually from bottom to top. As the breath comes in, visualize them gradually from top to bottom. When staying, pause slightly in the state of dissolving into the Om (Tibetan: ༀ, Sanskrit Devanagari: ॐ, Sanskrit Romanization: oṃ, literal Chinese meaning: Om) at the navel chakra. Thus, there are twenty-two stages of visualization in the lineage. The standard of completion is that the three channels and six chakras appear clearly in the mind. The second is the order of practicing mantras, the inner mantra is the A (Tibetan: ཨ།, Sanskrit Devanagari: अ, Sanskrit Romanization: a, literal Chinese meaning: A) of the navel chakra, the order is to gradually combine the letters of one's own chakra and the Tathagata's chakra, until the burning, melting, and generation are all complete. The method of practice is to rely on the four wheels of Tummo. First, clearly visualize the three channels and four chakras with their letters according to the lineage order, then in the space in front, visualize the essence of all Buddhas, the root guru, Bhagavan, appearing as the form of Chakrasamvara. Holding the breath, use the lower wind, thereby moving the wind wheel at the anus, its wind causes the letter Ksha (Tibetan: ཀྵ།, Sanskrit Devanagari: क्ष, Sanskrit Romanization: kṣa, literal Chinese meaning: Ksha) to burn like fire, going out from the Roma channel. Thus, the navel chakra and all the letters burn like red-hot iron, and visualize the letter Om (Tibetan: ༀ, Sanskrit Devanagari: ॐ, Sanskrit Romanization: oṃ, literal Chinese meaning: Om) burning like fire, this is the first stage of visualization. Again, going out from the Roma channel, burn the heart chakra, this is the second. Again, going out from the Roma channel, burn the throat chakra, this is the third. Again, going out from the Roma channel, burn the crown chakra, this is the fourth. Again, passing through the Roma channel, going out from the right nostril, the Chakrasamvara wheel in front passes from the right nostril, causing the four wheels of the body to universally melt, gather the nectar, come out from the left nostril, enter one's own left nostril, passing through the left channel,
Chinese
第五，观想头顶轮充满甘露，并滋养所有字母。依次通过独脉。第六，滋养喉咙的ཨོཾ་等字母。通过独脉之路。第七，滋养心脏的字母。同样通过独脉。触及脐轮的ཨོཾ་。所有字母都得到滋养，并充满甘露。第八，专注于燃烧和滴落。然后，再次屏住呼吸，使命气之火燃烧。一道细小的火焰从顶轮的道路上升起。触及脐轮的ཨོཾ་，使其燃烧。火焰逐渐上升。第九，焚烧心脏的ཧཱུྃ་字。火焰从独脉上升。第十，摧毁喉咙的ཨོཾ་。第十一，触及头顶的ཧཾ་并焚烧。依次通过。从眉间金门而出。在如来部中来回。从头顶 जालन्धर (Jālandhara) 进入，产生甘露。第十二，观想ཧཾ་字等头顶的所有字母都充满甘露，非常清晰。其他相同，第十三，滋养喉咙的字母。再次下降。第十四，滋养心脏的字母。从那里再次下降。滋养脐轮的字母。专注于ཨཾ་。第十五。像这样先进行一次。然后，拙火之火在头顶的ཧཾ་之间燃烧。第十六，焚烧心脏、喉咙和头顶之间的轮，包括字母。然后，不再在如来部中来回，从ཧཱུྃ་中产生甘露。第十七，滋养喉咙、心脏和脐轮之间的轮和字母，专注于那里的燃烧和滴落，并进行观想。这就是第十七。因此，在密咒次第中有十七个观想循环。达到最终的程度是，出现跳动和摇动等现象。第三，生起智慧的次第是：智慧是在十六种喜乐的尽头体验俱生智。次第是从观想金刚宝中的喜乐到观想眉间毫相中的喜乐。修持的方式是：密咒次第的拙火观想，包括在如来部中来回一次后。然后，不再在如来部中来回，拙火在头顶的ཧཾ་之间燃烧，使ཧཾ་融化成甘露。融入喉咙的ཨོཾ་中。一个观想循环。
English
Fifth, contemplate the crown chakra being filled with nectar and nourishing all the letters. Pass through the single channel in sequence. Sixth, nourish the letters such as ཨོཾ (oṃ) of the throat. Pass through the path of the single channel. Seventh, nourish the letters of the heart. Similarly, pass through the single channel. Touch the ཨོཾ (oṃ) of the navel chakra. All the letters are nourished and filled with nectar. Eighth, focus on burning and dripping. Then, again hold the breath, causing the kundali fire to burn. A thin flame goes from the path of the central channel. Touching the ཨོཾ (oṃ) of the navel chakra, it burns. The flame gradually goes up. Ninth, burn the ཧཱུྃ (hūṃ) syllable of the heart. That fire goes from the central channel. Tenth, destroy the ཨོཾ (oṃ) of the throat. Eleventh, touch the ཧཾ (haṃ) of the crown and burn it. Pass through in sequence. Go from the golden gate of the eyebrows. Go back and forth in the Tathāgata lineage. Nectar arises and enters from the crown Jālandhara. Twelfth, contemplate that all the letters of the crown, such as the ཧཾ (haṃ) syllable, are filled with nectar and very clear. The others are the same, thirteenth, nourish the letters of the throat. Descend again. Fourteenth, nourish the letters of the heart. Descend again from there. Nourish the letters of the navel chakra. Focus on the ཨཾ (aṃ). Fifteenth. Having done one round like that first. Then, the tummo fire burns between the ཧཾ (haṃ) of the crown. Sixteenth, burn the chakra between the heart, throat, and crown, including the letters. Then, without going back and forth in the Tathāgata lineage, nectar arises from ཧཱུྃ (hūṃ). Seventeenth, nourish the chakra and letters between the throat, heart, and navel chakra, focus on the burning and dripping there, and contemplate. That is the seventeenth. Thus, in the mantra sequence, there are seventeen contemplation cycles. The measure of reaching the end is that throbbing and shaking, etc., occur. Third, the sequence of arising wisdom is: Wisdom is experiencing co-emergent wisdom at the end of the sixteen joys. The sequence is from contemplating bliss in the vajra jewel to contemplating bliss in the ūrṇā. The way to practice is: Having practiced the tummo contemplation of the mantra sequence, including going back and forth in the Tathāgata lineage once. Then, without going back and forth in the Tathāgata lineage, the tummo burns between the ཧཾ (haṃ) of the crown, causing the ཧཾ (haṃ) to melt into nectar. Dissolving into the ཨོཾ (oṃ) of the throat. One contemplation cycle.