Allan Kardec. The book of spirits (№ 396084)

Question: the Souls that need to connect, is this the beginning of its existence, and whether each of us somewhere in the Universe, the half with which it will inevitably once connected?
Answer: No, between two souls is not special, inevitable connection. A relationship exists between all the spirits, but to varying degrees, depending on the category they occupy, that is, depending on their perfection: the more perfect they are, the stronger their connection. From the disagreement are born all the scourges of mankind; from consent to complete happiness.