>>41051696
All direct techniques are complicated and difficult and from what I've seen require either meditating hours upon hours to reach the jhana-level concentrated onepointedness you're talking about, mentally exhausting visualization practices, hours of tactile imaging etc. Meanwhile the first time I got vibrations was totally unintentional after only reading about indirect techniques and spontaneously waking up in a liminal state without even trying, just being able to recognize the phenomenon