I had a tarantula dream what does this mean?

Ok here it goes. I walk up to my front door and see spider webs all over it. So i knock them down. I go in my house then for some reason something told me to look under the bed and under the bed in a hole of the wood was a spider so I thought. Me and my boyfriend got it out and come to find out it was a tarantula! I was just wanting my boyfriend to get it out. Not hurt it but he cut it's head off. I tried to scream dont before he did it. Didnt work. Then it still kept crawling. I dont know why I had this dream. I am not afraid of spiders or insects. And havent thought off them either. Any idea's? Also the tarantula had a skittle size white spot on its head and a quarter size yellow spot on his back. But all black other than that. Thanks!