Complex sentence: They continue to pay their respects to the house of Charan Shah since it has become a shrine for them since they strongly believe that one who has become a sati is a deity and she is worshipped and endowed with gifts.
Split into simpler sentences: They continue to pay their respects to the house of Charan Shah. It has become a shrine for the villagers, as they strongly believe that one who has become a sati is a deity; she is worshipped and endowed with gifts.