I suggest you wait to mourn until at least 7 days after the death. Give the soul time to process it all. Just tell your self you will grieve after their soul has safely crossed over. This is their time, not yours. I do know this is easier said than done.
If your vibrations are not high, and your intentions are selfish, you would not be able to stand the intensity of a close visit from an Angel, Archangel or The Holy Spirit.
Angelic beings do not hold on to disappointments
The vibration of love is the only action after all!
The medicine of the animals is their naturalness, what they have learned about surviving and thriving on this planet. What they can teach you to help you stay in your souls path.