This is a great and good question, and I can't avoid to thinking about this init from my cChristian perception of world things, or as others have said: "my christian cosmovision of all things"worldview.

Cosmovision is not a word that is used in Engish.

In a world where everybody dies and areis going to die, I find hope thinking ofthat my life won't be destroyed by the death, and instead i'll have an eternal life and an eternal body which God will give me in a future day.

It can bemay sound like an old and antiquated point of view but ithat's my cosmovisionview of reality in relation to the death.

And also, it's awesome for me thinking of it,to think about because not only I'llwill I see my family and friends again in that day, but also God will remove the pain and tears of this world and to those who trust in Him.

This makes me feel withat peace when I think of it because of the pain that I'm seeing these days.

I'm sharing here my point of view about immortality, and maybe you may think that it's a crazy point of view, but, of course, you mayare entitled/welcome to think that.

Immortality in Mmy point of view on immortality ¶
or ¶
immortality from my Ppoint of Vview

the first option is more natural but both are correct

This is a great and good question, and I can't avoid to thinking about this inthrough my christian perception of the world things, or as others have said: "my christian cosmovision of all things".

great is a more extreme word for good and so you would never describe something as both great and good.
words to use instead of good/great: interesting, intriguing, thought provoking

In a world where everybody dies and are going to die, I find hope in thinking ofthat my life won't be destroyed by the death, instead i'll have an eternal life and an eternal body whichthat God will give me in athe future day.

"In a world where everybody dies and are going to die" - unnecessary to say both

It can be sound like an old and antiquated point of view, but it's my cosmovision in relation to theopinion on death.

you don't need to ever use 'the' before the word death
cosmovision is an extremely uncommon word to use. I think worldview or thought process or opinion sounds much better

And also, it's awesomereassuring for me to thinking of it this way, because not only I'does it mean I will see my family and friends again in that day, but also God will also remove the pain and tears of this world and tofor those who trust in Him.

awesome is a very casual word and wouldn't normally be used in formal writing and as this is a serious topic I wouldn't use it.
"reassuring" - intended to remove someone's doubts or fears.

This makes me feel withat peace when I think of it because of the pain that I'm seeing these days.

peace is a state of mind and so you would use "at".
this sentence sounds unfinished and doesn't really make sense.

I'm sharing herethis is my point of view abouton immortality, and maybe you mayight think that it's a crazy point of view, but, of course, you may think thatare welcome to your own opinions.

sounds more natural this way