A PDF file can describe how to sit or how to breathe, but it cannot correct a student who is inadvertently straining their nervous system. Authentic Kriya requires a "Guru-Chela" (teacher-student) relationship to ensure the practitioner is prepared to handle the increased voltage of kundalini energy.
The old man grew kinder. "Let me tell you a secret about the '144 Kriya techniques.' They are not meant to be collected like stamps. They are a living transmission. Lahiri Mahasaya taught them contextually. To one student, he gave a technique for the vishuddhi chakra (throat). To another, a technique for walking meditation. The number 144 is symbolic—it represents wholeness. The complete set is not a list; it is the entire science of self-realization. Breathing, posture, mantra, devotion, service, self-inquiry. All 144 are inside you already." 144 kriya yoga techniques pdf