This question is misleading. Believing – as in this case – in astrology does not mean asserting the truth of it but simply using faith to hold onto something we don’t know.
It is precisely the mystery concealed behind the word ‘astrology’ (or horoscope) that compounds an irresistible attraction for the unspoken fears of many people. As if what is unexplained and as such a source of interest could one day redeem – through an optimistic prediction – the existential emptiness or awe of the unknown.
Quite different is the case of faith sustained by knowledge or direct experience; in that case, it becomes a revelation, the access to a truth that imposes itself with such evidence as to pierce once and for all the darkness of ignorance. In this circumstance, faith acts as inward support built on the foundations of a spiritual reality.
In the case of astrological thought, believing in the direct influence of stars and planets on the individual’s destiny seems to be in apparent disagreement with what has been established by scientific evidence. That means approaching astrology in a fideistic sense, knowing full well that current science cannot accept conclusions not based on its thinking paradigms. That opens the way to a superstitious use of astrology because we are not aware of its patterns.
On the contrary, understanding that astrology is a symbolic science acting as a bridge between reality as it appears and the conscious being that interprets it means living according to the laws of universal harmony, uniting faith and knowledge in an embrace of cosmic dimensions. Astrology ceases to be a belief and integrates into an individual existence.