When feeling into the overall sensation of the body, tune into the underlying subtlety of vibration. Notice the shift in consciousness (however slight) as the mind continues to follow/connect deeper and deeper with the subtle waves and pulsations of the underlying “Hum” of the body.
Meditation techniques certainly help in creating the “setting” in which the fine underlying sensations/vibrations can be tuned into, but going deeper and deeper into the subtle realms is not something—I believe—meditation technique of itself is capable of doing.
Here is what I believe happens: once a deep connection with the subtle/ethereal vibrations are viscerally connected with, then meditation technique can be very helpful to go even deeper.
The great irony here is that most meditators begin with the assumption that meditation technique will—in a “step-by-step” fashion—connect them with the Divine Realms. In all my years of meditation practice in the ashram, I had many wonderful spiritual experiences, but the connection with the exquisitely fine Bliss Resonance remained elusive. Neither did I see evidence of that connection with the majority of the Monks that I lived with.
Meditation technique, when focused upon and held tightly to in “step-by-step” process, can create a barrier—however slight—that separates the meditator from the very fine nuances of how the Life Force (Spirit) in the body wishes to move/dance.
The practice of meditation technique does not necessarily lead to a wider energetic space within. The inner “resistance” created by strong attachments to beliefs and assumptions regarding meditation and spirituality builds a kind of force field or “wall” of noise that prevents us from hearing/feeling the subtle reverberations that move just below the surface of our familiar state of being.