Well I think it is the 'She' that confused you; I wasn't refering to life here actually - I think I'll have to fix that

The sky is so dark, and the end is looming

*I'd change this line to "the sky seems dark, the end is looming" seems to flow better that way to me*

The thunders seem ruthless for life it's drooling

*This line was a little confusing. Maybe change "thunders" to "thundering". Not sure about the "it's drooling part" what did you mean by that?*

The world is devouring on our dreams.

*take out "on" don't see a reason for it*

Then along came the sun shining with a smile
And a giggle you can hear from miles away
She runs effortlessly, she says the sky is graceful
She is seeing it differently; I wish her sight is faithful
I think I will try to sing along
I'll take a leap of faith into my fears
And find that there's nothing to fear at all
Or if I am lost and dead, I'll die with a smile

*The rest was a lot better. I would work on the first few lines because they didn't flow as well as the last couple did. I understood the ending a lot better. Keep writing. -Nik*