I get very surprised and upset at constantly reading/hearing about caste. One of the fundamental beliefs in Sikhism is that we are all equal. Caste was one of the earliest things that Guru Nanak Dev Ji rejected. Why then is it such a big issue still? Can anyone give me some insight as to why they believe in it and why it seems so hard to let go? Is there anything we can do to make people understand that caste is not important?