At the risk of sounding cheesy, I really wanted to share the below with you. You've probably heard it before, but I also recently lost someone and it helped me when I felt so so bleak. I also use it to explain to my young children about the passing of something dear to them.

(do not stand at my grave and weep)
Do not stand at my grave and weep,
I am not there, I do not sleep.
I am in a thousand winds that blow,
I am the softly falling snow.
I am the gentle showers of rain,
I am the fields of ripening grain.
I am in the morning hush,
I am in the graceful rush
Of beautiful birds in circling flight,
I am the starshine of the night.
I am in the flowers that bloom,
I am in a quiet room.
I am in the birds that sing,
I am in each lovely thing.
Do not stand at my grave and cry,
I am not there. I do not die.

I'm useless with my own words but I really hope this helps you through your pain right now.

All the best wishes.