I haven't finished mine yet but I thought I'd share the spell anyways!
This pouch is to make yourself have dreams of a past life. As with other dream pouches/sachets, you just pur it under your pillow. I am otherkin and though I'm not totally sure if I believe in past lives (or souls, or magic for that matter haha), I figure it couldn't hurt to try something like this. And the main reason I'm so skeptical anyways is because I rarely have dreams as any of my kintypes. I'm sure this could work for human past lives as well though, as long as you know enough about your past life to do this spell.
Anyways, here's what you'll need for the pouch:
Fabric of some kind, preferably a color/pattern you associate with either your past life or dream magic (I personally just used lavender colored felt)
Thread/string of a color you associate with dreams and/or knowledge (I used silver)
Quartz (preferably charged in moonlight because, you know, moon and dreams)
Some kind of taglock to represent yourself in THIS life
Another taglock that represents the past life you wish to dream about (optional: put in second pouch if you want to reuse this one for different past lives)
Bay leaves (for wishes and prophetic dreams)
Dandelions (psychic abilities, astral travel)
Honeysuckle (intuition [I use this a lot because it grows in my backyard and I love the way it smells])
Peppermint (sleep, prophetic dreams)
You can use other herbs/things you associate with your past life in either this pouch or a separate one. I am wanting to have dreams of my orca life, so I used blue felt to remind me of the ocean, purple yarn for dream magic, and made a little drawstring bag instead of a square pouch because I'd like to be able to open it up again, as I'm using some things I don't want to keep in this pouch forever.
I also am using sea salt, rosemary, sea shells, sand, possibly ocean water (my mate may be sending me some in the mail <3), and some little charms/beads and stuff that is very orca-y to me.
The second pouch is totally optional and it mainly for if you want to use the first pouch with multiple past lives and don't want to make a bunch of different pouches for each past life. Or you could just stick extra things under your pillow alongside the main pouch. But remember to cleanse it after you use it, especially if you're going to use it for a different past life next time!