Doing a shrine to Kali was very uncomfortable. It felt like we were about to worship the devil. Her shrine needed animals bloods, meat/fish, incense, etc.
The odd part about the chants you perform while worshipping her is that there were three, all with different levels. The first was fine for people to chant but the other two were inciting worship to essentially the devil. The last one was only to be done in a temple or bad things could happen to you.
Building the shrine wasn’t he uncomfortable part, the chants that went with it were.