In the hands of a genuinely knowledgeable and intuitive astrologist, an otherwise hidden map is revealed. To the degree we can discover anything about who we are, our behaviour and our relationships, by looking at this map, the planets and stars, is determined by the skilled the astrologer.
Ultimately we have to discover for ourselves through our own personal experience whether any information, answers to questions or guidance that astrology provides, is true. And we can be very sceptical, even when we sense that it is. This is because we will resist accepting anything we cannot easily explain. Plus, our ego likes to believe it is always right, so wont want to hear anything that suggests it is living in delusion, or is fundamentally wrong about its beliefs.
Our egoic mind tries to work out how to deal with the world, based on what we think we know, what can be seen and made sense of. Anything our senses cannot perceive is therefore usually dismissed. We particularly reject anything that seems to challenge our beliefs.
If you are just taking your first tentative steps into astrology, try looking at your sun sign. Interpretation in astrology is endlessly complicated and nuanced, but there are some aspects of general agreement and one of these is that our sun sign does provide useful insight into our likely compatibility (or not) in relationship with another person.
This applies to partner, work, family and friend relationships. By looking at the sun sign in two people it is possible to see basic aspects of personality as they relate to the other. Once we know this, and some details around where our differences lie, we can use that knowledge to avoid or overcome friction. And it can also show where our own and others' characteristics have the potential to positively or negatively influencing the relationship. This naturally helps us avoid destructive tendencies and become more accepting of another's behaviour.