The meaning of isolate / isolation in dream | Dream Interpretation
Spiritual isolation signifies the hermit, or recluse – any person living in seclusion, whether through religious belief or not. This suggests the need to spend time alone in tranquility.
Psychological / emotional perspective: When we isolate ourselves (for example, on an island) it suggests that we do not wish or need to become emotionally involved with someone.
Material aspects: When we find ourselves in isolation in a dream we should decide if it is by our own volition or because of others.
If by our own wish, then there is a quality in us which has difficulty in relating to others; if because of others, we perhaps need to explore rejection and our feelings about it.