This dream may symbolize your journey through familiar territory, representing your comfort zone or routine. The presence of your sister could represent a close relationship or a part of yourself that you are familiar with. The large spider climbing up a tree may represent a looming fear or challenge that you are facing. The sound it makes when it falls could symbolize the impact of this fear or challenge on your life. The spider then jumping at your head may represent your fear of being overwhelmed or attacked by this challenge. However, you are able to duck beneath it, showing your ability to overcome and avoid this fear. The spider webs blocking the sidewalk may represent the obstacles and challenges that you encounter as you move forward in life. You must navigate around them to avoid getting tangled, symbolizing your determination and resilience in overcoming these obstacles. This dream may be a reflection of your current struggles and fears, but it also shows your strength and ability to face them head on. It may be a reminder to keep moving forward and not let fear hold you back.