Dream about killing big spider is sadly a lack of self-worth. You may need to take a friendlier approach toward a situation. You are being weighed down by your emotions or by a negative situation. This is an evidence for your abilities to proceed with whatever you want to do. Perhaps you need to cut-back on spending, smoking, eating, gambling or some other habit.
Killing big spider dream is a hint for a lack of communication between your conscious and subconscious mind. You are standing firm on your beliefs. You are not really expressing how you really feel. Your dream stands for the processing, transfer and sharing of information. You may be forcing your opinions and feelings on others.
If you dreamt about killing big spider:
Your current plans may stop dead in their tracks today thanks to someone who has a rather backward notion of the situation at hand. It seems that someone’s belief system is clogging up the works in a rather negative way. Open the door for dialogue.