Nietzsche vs. Christian fears?

You are right. Eternity HAS to get very very boring sooner or later. Non-existence is a bit better. At least you aren't real so you can't get bored. I think Eternal Return is fine IF your life was OK. If it wasn't you suffer eternally. Nietzsche was a depressive so he would hate the idea.

Yeah, eternity is certainly an unnatural thing. Nothing lasts forever. I mean the universe itself had a beginning and is predicted to have an end.

It is noteworthy that in Christianity their idea of heaven doesn't allow you to do whatever you want as you put it. You basically just worship God for eternity. That's it. You lose your free will essentially. I'm not sure about Islam's claim.

So yeah, either way it doesn't seem like an appealing prospect. Luckily there is no such thing as heaven or such things. Once you die, you're dead. That's it. You have one life, one chance to enjoy your life as much as you can.

PS: There are 3 main Abrahamic religions: Judaism, Christianity and Islam. There are some arguable others but essentially there are 3 not 2.

Concern over what may or many not happen to your soul after you die is without question -- the single biggest waste of time here on Earth.

1) It may or many not exist;

2) Each religion provides differing impossible guidelines to achieve this mystical place. The Muslims believe heaven is filled with female virgins providing the worst possible sexual experiences for eternity. Apparently Muslims don't know that women with sexual experience will provide more pleasure. What do the Muslim women have waiting for them? I guess they are not allowed in heaven. The Christian rules for attaining this place is almost as silly.

Eternity is beyond the dimensions of space and time, being a concept that one can but imperfectly apprehend. Only with an obscure understanding can we even discuss of how actions and instances occur in eternity, since our notion of things is inexorably bound with our empirical observations of space, time, gravity, &c.

According to the traditions of the theists you mentioned, Heaven chiefly consists of the beaitific vision of the Divine Being, contemplated and everlastingly loved. Since the Divine Essence is eternal and infinite, it would take a paradisaical eternity in order to contemplate, adore and love It.

An analogy (but extremely imperfect and thoroughly inadequate) would be the Schopenhauerian notion of the aesthetic experience. Consider also that theoreticians have taught that time is relative, and psychologists have also illustrated the relationship between time and consciousness, so that even in the empirical world we can sometimes observe how "time flies" and according to physics this may truly be the case in certain instances.

Nietzsche's concept of eternal reoccurrence is radically different, obviously. Eternal reoccurrence takes place in space and time, according to Nietzsche, and this notion is best understood after one studies the metaphysics of Schopenhauer. Reading Nietzsche without Schopenhauer is like watching television with only the sound on.

Well,which is worse,an eternity in a Christian hell,or an eternity of reincarnations on a potentially hellish earth or other planet? It may be true that no matter what ultimately happens to us,we have no control over it and can't stop it.Ah,that's a comforting thought,huh? No wonder Nietzsche was so crabby.

There's nothing to do in heaven.It's a realm of consciousness where you experience the love of a being full of love.You are in a limbo forever-cherishing that love and delving into it forever.The other faculties-vision,smell,sound just don't exist anymore.Only the perceptions of love&hate(in a consciousness called hell) exist.

We will all find out eventually.

don't read Nietzsche...he's an idiot