Ritual cleansing/purifying soap

[gooseberrywine]

7 squares/200g Melt and pour glycerin soap
I tsp grapeseed oil
1tsp fennel crushed
1tsp lavender flowers crushed
5 drops frankincense oil
3 drops sandalwood oil
6 drops peppermint

Melt soap as per instructions on box
mix in grapeseed oil
mix in fennel and lavender
mix in frankincense
mix in sandalwood
mix in peppermint

Pour into soap mould and let dry
once set properly cut in half

I don't know how to make it so the solid stuff doesn't go to the top and the bottom with none in the middle