One word of caution: back when I was taught to read playing cards, I was simply given their meanings. Just like for the Sibilla, there were no number meanings. The numerology was something I came up with to make sense of the meanings, remember them better and further expand upon them. You are free to come up with different associations, or even to disregard numerology entirely.

Aces in playing cards are connected to beginnings, obviously, but also to how and where things begin based on the associations of the suit.

In the suit of Hearts, the Ace is famously the House card. This is because our emotional sphere begins at home. The walls of the house protect us from what is outside. Thus, the Ace of Hearts represents the idea of inside. The house is the core of our individuality, where our roots are (it can also signify our origins, and the idea of origins, source, spring, well in general). It is also connected with positive beginnings or the beginning of positive things.

In the suit of Clubs, beginnings are interpreted differently. Here things begin objectively, they take root concretely out there in the world and not just inside of us, hence the Ace of Clubs’ connection with outside buildings and the idea of “outside” in general. More broadly, the Ace of Clubs is a card of production, commitment, activity, vigor and willpower. It also signifies signing papers, which is how documents become objectively valid.

In the suit of Diamonds, the beginning is seen in more absolute terms. This is the card of things starting out, of new things and, because the suit is connected to information and impulses, to news. It is also the card of all things that are first or of the highest value, such as diamonds, jewels, gold, a capital city, the sun, etc. The card can herald changes of phase, usually positive, and it is great for starting new ventures.

The suit of Spades is negative, so the beginning turns into an ending. Thus, this is almost universally the Death card. It heralds change, but painful change, change which is seen as the ending of something rather than the beginning of something else. It’s connected to all things that confine us. On a broader level it can even signify a country’s borders because that’s where the country ends. It is the card of cuts and knives. Broadly, this is the card of bad things beginning or of bad beginnings. It is also connected to all things that are last or of least value, and to where things end or end up.