I am trying to do a follow up on an acticle I read about breathing to help depression. However every thing about breathing I can find at this site seems more about preaching yoga than teaching how to do it. No help at all.
Samadhi you describe briefly as concentration. This may be an acceptable Buddhist short definition, but would you say this is how Patanjali described it in the Sutras?
The article says only that anapanasati is the meditation taught expressly by the Buddha, not that he introduced it.
Actually, anapanasati was not introduced by the Buddha, in that he was not the first to practice it. In the yogic tradition, breath-watching is one of 112 unique ways to meditate, as Shiva taught Parvati in the Vigyana Bhairava Tantra. Awareness of different parts of the breath comprises the first eight or so techniques. All meditations outside these 112 are a combination of any number of the 112; similar to the way that we can take x, y, and z axes and find any point in three-dimensional space.