Notice how easy it is to focus attention within space. By regulating attention in space, the processes of time and causation (chain of mental events) also are easily regulated. Focusing one-pointed attention in a specific space in the inner world of meditation is a real key to transcending time, space, and causation. Start with this image, but then close your eyes and place attention in the space of the navel center, heart center, throat center, or eyebrow center, and similarly go deep into the stillness and silence, which is there.
Start with 15-20
(This is a yoga meditation practice called trataka.)
Inhale silently with So. Exhale silently with Hum.
(click if you don't hear sound)
Turn off sound after a while,
and practice in silence.
(Info on SoHum)