Generally speaking, there are two different kinds of Bliss--the Bliss produced through meditation, and the Bliss produced through ordinary ways. Through the dropping of the melted Bodhi-Heart to the Secret Center, one experiences the Bliss; however, even in this process the kindling of Dumo by which the is melted is a necessary condition required in the production of such a Bliss. But though the Dumo is kindled and the Bodhi-Heart melted, this by no means implies the entering into the Central Channel. Therefore, it is understood that some individuals may experience the Bliss of Thig-le-Melting but not that of the Entering-into-the-Central-Channel, as experienced by those who the vital physical exercises, given in the pith-instructions.

As the Thig-le arrives at the top of the Vajra Jewel, there are great difficulties in holding it. In the beginning, the outer and inner methods are applied to let the Bodhi-Heart drop, but before it reaches the Jewel, it should be reversed with great force. However, if it is not properly spread over all the body, some sickness may arise. In view of this danger, one may try to spread the with many different methods. However, he may not go far enough to differentiate between the Thig-le-Melting of the Entering-into-Central

[paragraph continues] Channel and the -Melting through the ordinary process. To sense the difficulty or the ease of the , to carefully weigh whether or not to apply a very forceful halting exercise, to discover whether the Thig-le is properly spread and the danger of sickness avoided--these are necessary safeguards.

The reason and purpose for melting the Thig-le by the Dumo fire through meditation practices is to bring to pass the Innate Wisdom. To produce the Innate Wisdom requires, in general, the standing of the melting Thig-le below the navel; in particular, the halting of it at the Jewel. If it cannot be held for some time, the real Innate Wisdom can hardly arise.