Dear Pal, I have answered some of your concerns below. I'm not totally sure
where you have concerns, but I will share my thoughts.
Sat Nam Brian
--



>I would like to know how important the spiritual master in Kundalini Yoga
is?


I feel that all the knowledge of the ages is passed on through the Master. I
feel it is either use their knowledge or spend 10,000 incarnations figuring
it out for ourself.

And my last question: To gain progress is it necessary to surrender to the
>master...and how can a low trust in the master affect the progress?


We need to surrender to God. The master is a guide. We should only follow
someone we trust and respect. For me that is Yogi Bhajan. The message is
important not the messenger, but I assume we should show reverence for the
gift he is sharing.