How is rebirth to be understood?

I have some questions regarding this Buddhadhasa text saying there is no rebirth in Buddhism. Is rebirth not what enlightenment is supposed to bring an end to? Is there no rebirth because rebirth is actually to be understood in a moment-to-moment manner unrelated to the end of life (rebirth as pertaining to the condition of willing no more)? Then why does Goenkaji talk about "good fortune from a past life"? I thought I also heard him imply the rebirth of our consciousness in the context of suicide being a bad idea for this reason.