This quote is a metaphorical expression that delves into the perception of reality and the hidden layers of existence. "All that you think is rain is not" suggests that what we perceive or believe to be true may not always be the case. Our understanding or interpretation of situations is often limited by our personal perspectives, experiences, and knowledge.

The second part of the quote, "Behind the veil angels sometimes weep," implies that there’s often more than meets the eye. The ‘veil’ symbolizes the barrier between the seen and unseen, the known and unknown. The ‘angels’ represent divine, pure, or higher forces, and their ‘weeping’ signifies a profound sorrow or pain that is not visible or comprehensible to us. This suggests that there are deeper layers of existence, emotions, and experiences that we might not be aware of or understand.

In the context of personal development or today’s world, this quote could be interpreted in various ways. It could mean that one should not be quick to judge or make assumptions based on appearances or superficial understanding. There might be hidden struggles or pain behind someone’s smile, or there could be deeper implications and consequences behind global events that we might not immediately grasp.

In terms of personal development, this quote encourages introspection, empathy, and open-mindedness. It prompts us to question our perceptions, to seek deeper understanding, and to be compassionate towards others’ unseen struggles. It also serves as a reminder that our perspective is not the absolute truth but a subjective interpretation of reality.

From a broader perspective, this quote could be a call for us to be more aware and understanding of the complexities and intricacies of the world. It encourages us to look beyond the surface, to question our assumptions, and to seek a deeper understanding of the world around us.