First you have zero which is unbounded. The number one equals creation or the start. The number two is the difference. If you look at the number 1 it looks like an arrow. Lots of ones in the name signal energy, drive ambition and forward movement. Aries is the first sign in the zodiac, and Aries like to be first. There are other planets in the chart but the Sun is the biggest “planet” in the solar system and it is the engine in the chart.
The first numbered Trump in the Tarot is the magician. In the Tarot The Magician has a slightly different expression. It is more mental in approach. Also it is ruled by Mercury, in the system I use the number 1 is ruled by the Sun. Mercury has the fastest revolution around the Sun. It is the planet of communication, primary school, transportation, contracts, commerce and thieves.
Mercury is currently retrograde so you’ll find that communication, travel, contracts and short journey are problematic. Mercury retrograde or going backwards is a “re” time. Review, recheck and reorder.