Candle light symbolises the continuation of the life of the deceased in spirit, and serves as a reminder that the memory of the loved one will live on. The meaning of memorial candles is deeply rooted in the idea of remembrance, honour, and respect for the lives of those who have passed away
The photo above was taken along Pasar Karat, of which where a lady was seen lighting up a candle which I presume symbolising prayers for the dead. My prayers to her and her family.