I got no clue, why do I feel so low

Clouds are moving
And its pouring in my heart
I try to walk in the rain
But something's stopping my steps and I cry

My smile faded when you disappeared
Knowing you will never be back
Don't you know your presence colors my shadow
And I start drawing rainbows

We'll break all the walls and mend our hearts
When the shadows lifted and our heart inflamed
Until then darling I'll keep you safe in my prayers
Just know that, I'll meet you in heaven