XTRAORDINARY

Alessia is hell bent on celebrating her 18th birthday. She was yet to find her mate and discover her element or have her wolf.The daughter of a powerful witch and an alpha but she was practically human with enhanced abilities and for this, she was bullied while growing up.
"Why do you want to celebrate this one" Meher asked her. "Because I hope to find my mate". She believes that her mate will love her unconditionally not minding her situation.
She later finds out that she is mated to Dylan the alpha Midnight pack, the most feared and respected pack. "How Can It Be?" They wondered. Being an alpha of the most powerful and ruthless pack, his Luna needed to be strong, brave to be able to rule over his people. "I can't accept her, she isn't strong enough".

"I am her reincarnation". What does Alessia mean by this statement?

I'm trying to rekindle my writing ability, your opinion is needed. Thank you.