The Veil
The veil between worlds is not as heavy as it used to be. There may be a time when it shatter completely. The rules for guides are very strict with interaction to us such as we are not allowed to look at our own life path scroll we created before incarnating. They can help us stay on track with what we had wanted to learn and do but they can't share too much in the way of specifics. Probably why readings for others are so much more accurate than readings for us or loved ones.