Moon contacts in synastry is one way of seeing karmic connections between people.

These connections can show shared experiences in other lives between the two people or they can show karmic issues with mom that are being stimulated by the relationship.
Either way, moon contacts in synastry show that your relationship with that person reaches into your karmic past.
I use the same orbs for synastry as I do natal aspects: 7 degrees for conjunction, square, trine opposition and 3 degrees for sextile and quincunx. Looser aspects are read a little differently than tighter ones.
I often get questions about why I use the orbs I do. Bottom line is that in my 40+ year experience reading thousands of charts, wider orbs do not convey the specific aspect meaning.
Remember, everything in your chart is connected even if isn’t aspected. This is why the deep and specific meaning of any placement comes from the context of the whole chart.
Every placement is a part of the whole that is you. It may be easier to see how pieces that share house or sign placements have a connection, just know that your life is the connection between in your chart.
For example, your north node may not aspect anything, but there is a thread of connection to it throughout your chart because it’s where you are heading in this life and everything in your chart has a play in that.
So much to explore about the moon in your chart. Swipe above for some comments on synastry and aspects.
🌙 The moon is historical, irrational, and part of your essential nature. If you have any Cancer placements in your chart, you may tend to hang on to issues and beliefs associated with that part of yourself. This also goes for whichever house Cancer rules in your chart.
🌙 As you’ve been learning astrology, what has your moon revealed to you? How had it helped you to understand others?
Where’s your moon? 🤎✨