Have any secular individuals here come to terms with their own mortality? I haven't yet, but I sure hope I have a while to figure it out. Right now all I've got is a hope that a singularity will grant immortality. Or that this reality is a computer simulation and we wake up in a bigger computer simulation where we get bored sometimes and choose to spend lifetimes during interesting periods of time.
Either of these are much more likely than the eternal afterlife of a theistic god, but not nearly likely enough to give me any comfort. Dr Roth's lesson on mortality seems to be that death is inevitable, but that doesn't give me any satisfaction, for now.