Hi, I'd like to help you with your question.
Transference is caused by experiences we have had early in life that are unresolved. We develop a perception based on our experiences and we see the world through that perception. Whenever we begin to dig deeper into our subconscious and unconscious mind, we touch on those learned perceptions and we transfer them to the therapist we are working with. For example, if you learned as a child that your parents disliked you and thought you were a pest, then you will transfer those feelings onto the therapist. Now you are aware that the therapist doesn't like you and you are "pestering" them when you ask for anything beyond what they offer you. It is the therapists job to understand that transference and help you to explore those perceptions and become aware of them.
Transference also is common in our relationships with others. It can cause conflict if we have enough unresolved issues. For example, people who have been abused will approach relationships with the perception that others will hurt them like they were hurt as a child. They see those they come in contact with with the eyes of the child that experienced the abuse.
Growth and awareness helps to limit the transference that goes on in your life. Insight helps, but you also need to be aware of not only the transference, but how it manifests itself in your relationships and how it affects your perception. Understanding the origin of the perception is also vital. It can help you relearn perceptions and limit transference in your relationships.
I hope this has helped you, Kate