First House
The body, the approach, the first thing anyone meets.
The first house begins at the Ascendant, so it is the house the whole chart is built from. It covers the body you live in, the manner you arrive with, and the reflex you lead with before thinking.
Planets here are unmissable — they are the part of a person that shows immediately, for better and worse. An empty first house means nothing bad; it means the approach is described by the rising sign and its ruler instead.
Directly across the wheel is the seventh house. Opposite houses work as a pair — what is emphasised in one is usually being answered for in the other.
Which planets fall in your own first house depends on your birth time to the minute. Cast the chart — free, and it will tell you honestly if the time you have isn't enough to place them.