“To see a spider in your dream, indicates that you are feeling like an outsider in some situation. Or that you may want to keep your distance and stay away from an alluring and tempting situation. The spider is also symbolic of feminine power. Alternatively, a spider may refer to a powerful force protecting you against your self-destructive behavior. If you kill a spider, it symbolizes misfortune and general bad luck. [Even if it’s just a dream spider?]
“To see or eat eggs in your dream, symbolizes fertility, birth and your creative potential. It indicates that something new is about to happen.
“To dream that you or something is dirty, represents your anxieties and feelings toward sex. The dream stems from low self-esteem and feelings of being unworthy. You need to purify your mind, heart and body.
“To see or come in contact with feces, signifies aspects of yourself that are dirty and negative and which you believe to be undesirable and repulsive. You need to acknowledge and express these feelings, even though it may be shameful. Release the negativity in your life. Alternatively, it may also refer to someone who is anal retentive. To dream that you are unable to dispose of the feces, suggests that you are unwilling to let go of your emotions. You have a tendency to hold in and keep your feelings to yourself. [Wow, this is true!]
“To see or ride a motorcycle in your dream, symbolizes your desire for freedom and need for adventure. You may be trying to escape from some situation or some other responsibility in your waking life. A motorcycle is also symbolic of raw sexuality.”
From this website (emphases my own; comments inserted [in brackets]).