Prologue:

All living beings Live and in the end they Die.

[Is that so?]

Yes.

[Is that it?]

I don't know but according to Samsara, these beings are then reborn on basis of their Karma.

[What is Karma?]

The deeds or 'actions' done by any living organism through their physical or mental acts which has several future consequences.

Some say it affects what people perceive as luck, fate or destiny.

[Is all of this true]

.....I don't know.