A guru is one who guides his followers from darkness to light he can awaken dormant spiritual knowledge within the heart of his followers.
In hinduism the guru is considered a respected person who enlighten the minds of his followers and just being in presence of a guru can bring on positive vibes across the followers.
An enlightened master will lead us from darkness to the path of self realization.
Samdarshi says the first thing is non attachment. Drop all desires don't be attached and the do practice again and again. also the non attachment is not limited to feelings it also means get unplugged and give some attention to yourself and follow the path of self control and self improvement. Samdarshi has a desire to share the life giving effects of yoga offering peace and calmness through retreat.