]]>To catch baby thoughts, first build a fortress -- normally your own breath, but it can be anything. Soon, the baby thoughts will start knocking on those walls, and the method to kill a baby thought is simple: notice it.
If you don't notice it early, the thought will get older and eventually die after several long minutes. During those minutes, you will be absorbed by that thought, and then another thought will wait for its turn, and another. This is what happens to people in their everyday life: the birth, growth and death of long strings of thoughts.
During meditation, you shorten this cycle and hunt the thoughts as young as possible. After many hours of hunting, as you get better at killing them, they will come more sparsely, until you will find yourself alone, in peace and silence.