For these reasons the "so-called" three Bardos are avowed; however, such statements do not make much sense and are superfluous.[r_nar:91] The basic principle is to interpret and associate the Three Dharmas of the Foundation with the Trikaya of the Path (in order) to establish a system. Only after this first consideration can the Birth-Death Bardo and the other two Bardos be considered acceptable. The yogi should acquaint himself with the fact that the three Illusory Body teachings--Illusory-Body of the Waking State, Illusory-Body of the Dream State, and the corresponding Illusory-Body of Bardo State--are all based on the fundamental principle of Bardo. He should also know that by means of the practice of Heat Yoga in the daytime, through the process of Prana entering, remaining, and dissolving in the Central Channel, the Four Blisses or Four Emptinesses will successively appear. He should know that this process is in correspondence with the principle of the (Subsiding) Process of Mind Prana at time of death, so that the Light of Death will also appear.
Likewise, he should know that the teaching and practice of the Light-of-Waking State, Light-of-Sleeping State, and Light of Death correspond to the principle of the (Subsiding) Process of Mind Prana at time of death; because in both cases the Four Emptinesses will appear. With this interpretation of the three (above) conformities in mind, the yogi should know that at the end of the emergence of the Illusory Body of Waking State the crude Nirmanakaya will be transformed (literal text: "...Nirmanakaya will be seized"). At the end of a dream, close to the waking state, the
[paragraph continues] Subtle Sambhogakaya appears by which the Nirmanakaya will be transformed (seized). At the end of the emergence of the Light of Death the corresponding Sambhogakaya of Bardo arises, by which the crude Nirmanakaya will be transformed (seized).
The yogi should be well-acquainted with this basic principle so that he will be clear from all doubt (in his mind) and acquire a definite understanding. If he grasps the foregoing principle, he will then understand the correspondence of the Dharmakaya with death, the Sambhogakaya with Bardo, and the Nirmanakaya with rebirth. These three correspondences can also be subdivided into nine; one should know that this is the highest teaching.
Some (scholars), however, made a different interpretation. They aligned the Lust with the Third Initiation, the Blindness with Light, and the Hate with the Illusory Body. Although in the performance of the Third Initiation some aspect of lust is involved, there is little reason to align the Lust Initiation in this connection, because in the case of the Third Initiation many preparations and practices are required. (Since both the preparatory practices and the Arising and Perfecting Yoga are not aligned with the Bardo, there is little sense in connecting the Lust with the Third Initiation).