KRISHNAMACHARYA ON MEDITATIVE FOCUS

Remaining in a posture and gazing at one's favorite (ishta) icon and

experiencing a feeling of bliss is called “trataka”. It is of two

types, anta and bahi. To gaze at an outside object like an icon is

external trataka. Closing one's eyes and 'imaging' the object

internally and continually focusing attention in between the eyebrows

is the antah(r)trataka or internal gazing. One can practice this

between one to ten minutes.