The aim is simple: to pay attention – be "mindful". Typically, a teacher will ask you to sit upright, in an alert position. Then, they will encourage you to focus on something straightforward, like the in- and out-flow of breath. The aim is to nurture a curiosity about these sensations – not to explain them, but to know them. There are other techniques as well. Walking meditation is one, when you pay attention to the soles of your feet. That too carries a symbolic resonance: if breath is to do with life, feet are a focus for being grounded in reality.
