Originally Posted by django
My question is, in Buddhism/Tibetan Buddhism, is there also a moment of submitting to some greater force/Buddha, because I can't imagine attaining anything without this crucial 'submission to something greater' moment.
The best way for one to find out anything significant about Tibetan Buddhism is to visit some Tibetan Buddhist centres, listen to some talks etc. The key aspect of Tibetan Buddhism is your relationship and instruction from a recognised teacher (guru) in one of the lineages of Gelug, Sakya, Nyingma, or Kagyu.
However, if you are new to Buddhism, its also wise to check this list of controversial teachers and cult-like groups:
May all sentient beings have peace and happiness.