Hello Chan,
What you are asking is to explain the basis of Buddha Dhamma. That cannot be done in a reply in a discussion forum.
However, I can point you in the right direction.
– First, I need to know how much exposure you have had to Buddha Dhamma. Please provide a brief description.
Here are some points I would like you to address:
– Are you a practicing Buddhist or have no idea of what Buddhism is?
– Do you believe in rebirth?
– Do you know what the ten wrong views (miccha ditthi) are?
– Have you read any sections on the pure dhamma website? If so, which ones? Any comments on what you have read may help me get an idea of your current understanding.