I hear there are many types of meditation techniques But I don't really see much difference between them. They all come with the same basic idea: you have to pick an object to observe or listen to or feal for, and while you are doing the observation, you need to ignore the thought. the only difference I can see is in the object of observation. it can be a mantra or the breath, or body sensations, or thought itself. So what is really the difference between lets say, TM and Vipassana meditation?