Dear Rajveer
So eloquently much has been said already, but might I too, not avail the opportunity to add an aesthetic character which otherwise will remain aloof, so I wonder ? And thus, I proceed !
You see, by definition the word sangh [adverb] means, 'in the company of' and the same with a suffix at the end pronounced now as sangat [noun] changes the whole dynamics of Sikh belief n value. Gur Ghar considers sangat [society] an integral part of the whole human genome to leverage intellectual, religious, social and spiritual evolution in the discovery of metaphysical truths without which, says Nanak, life is a waste.
Pathfinder Ji sums it nicely as something synonymous with and is in actual fact the "environment". Gur Ghar, you will no doubt appreciate places lot of emphasis on keeping the environment a good initiaitve for holy heights. The word sad sangat, a two syllable word is used to depict that very ideal. So yes, here is something special for you from our Guru....."sangat ki yeh sad ki oopjay atmic gyan" - translation would say something like...."keep company of the holy for it will help elevate spiritual delights".
Enjoy the day and God bless -