With the Moon in Aries, emotions come quickly and authentically. You feel things strongly, trust your gut, and respond to life with fire energy — expressive, reactive and honest. At work the Moon governs the conditions you need in order to stay steady: how much pace you can hold, how you prefer to be given feedback, and how much ambiguity you absorb before it starts to cost you.
With the Moon in Aries, emotions come quickly and authentically. You feel things strongly, trust your gut, and respond to life with fire energy — expressive, reactive and honest.
What the Moon describes is need rather than preference: what you require in order to feel steady, and what unsettles you first.
At work the Moon governs the conditions you need in order to stay steady: how much pace you can hold, how you prefer to be given feedback, and how much ambiguity you absorb before it starts to cost you.
In love, you are emotionally generous and you bond through feeling truly seen. You need a partner who matches your emotional intensity and gives you space to be real.
More on the Moon in Aries: Moon in Aries · Aries sun sign · Aries traits · all moon signs · moon phases
It is calculated from your date, time and place of birth. The Moon changes sign roughly every two and a half days, so the birth time matters more here than for your Sun sign.
They describe different things. The Sun is about direction and identity; the Moon is about what you need in order to feel secure. Most astrologers read both.
No — it is fixed at birth. What changes is how consciously you work with it.