Hello. Lemmy is known for having a tech savvy userbase, not so much dabblers in the occult arts. Please don't let that dissuade you - I would be searching for a community with an occult bent first. Try any of the find-a-community communities and see where people point you towards.

Having said that, yes I do like the occults even though I can't say I take them seriously like I did in my youth. Traditionally the suit you would be looking for is the swords for the sciences, since the swords are associated with the domain of the mind, judgement, truth, thoughts, etc.

Edit: try !findacommunity@lemmy.ml

... not sure if there are other community finders outside of .ml but that should get you started

what does it mean to be knowledgeable in tarot or astrology?

I'm super confused.

But

1. Im finishing up my PhD in cognitive neuroscience so that's psychology. So I know a tiny bit about psychology.

2. In my teens I got into new age stuff a lot. I learned how to read tarot and palms. I always enjoyed (still do) the imagery and stories contained in the cards.

3. In college I learned the terminology for how fortune telling works which I had already deduced but didn't know the term. It's barnum effect. https://en.wikipedia.org/wiki/Barnum_effect

Also I don't know what you mean by pentacles being science.

There are some themes in some suits but not fully. And pentacles are often presented as coins in illustrations. If they represent anything united, it's materialism and greed for things.

Swords mostly represent social conflicts. Challenges.

Wands. Hm. I'll have to think. These are sometimes called staves too. Could imply intentions. Creative ideas. I think of them as symbolic like candle flames.

Cups. Maybe fruition of work. Creations materializing. Relationships that are built.

These sort of interpretations are similar to other people's, all over the internet.

Just search "themes of tarot suits". Or Try "symbolism of suits."