Red - Red is an active, affective color, full of passion and emotion. It may symbolize passion, luck, joy, happiness, energy, action, sexuality, revolution, warning, danger....but also hate, anger, sin, greed, irritability and will power. As the color of blood, red is also the symbol of life.
A softer red is a symbol of love, mercy and compassion.
Light red stands for warmth and affection.
When intense, red can also indicate hatred, sin, rage.
Dark red is a symbol of passion, energy, greed, and anger.

Mars - Planet of energy and courage. Mars represents energy, aggression, violence, desire and the male sexual organs.. The ability to initiate and complete a task. The indicator of how we oppose and challenge the world.

Insects - in general, this symbol suggests that you may be feeling annoyed or "bugged" by a person, or people, in a current a situation.

Beetle - May symbolize destructive aspects in your life, possibly the little things often ignored until they have become too destructive.

Removing things from your body - suggests you are becoming aware of feelings, or parts of your personality that were previously internal or subconscious, holding yourself apart from your feelings or emotions.

Pain - signifies that you are being too hard on yourself with regards to a situation that was out of your control. It may also be a true reflection of real pain that exists somewhere in your body.

Injury - represents hurts, or events that may have led to emotional scars, internalized anger or aggression, attitudes or memories that are emotionally painful, body situations that are developing...possibly out of internal stress or grief...but are still only subliminal.

Arm(s) - an extension of yourself, a means of expression and protection. To see your arms as the emphasis in your dream, indicates your nurturing side, and your ability to reach out and care for people. Alternatively, it may represent the struggles and challenges in your life. Consider the phrase "arm yourself" which implies that you need to protect yourself, be more aggressive and take a firmer stance on things.
Right arm - signifies your outgoing nature and is associated with masculine energy.
Left arm - signifies your supportive or nurturing nature and is associated with feminine qualities.

Injured arm(s) - signifies you are feeling an inability to care for yourself or your helplessness in reaching out to others. You may have been feeling limited and restricted in terms of your freedom or activities.

Legs - represent support, motivation, the emotional and physical strength you use to get about in life.

Blood - Life's energy source. Love, passion, anger, and life itself. A vital part of our physiology and it may symbolize our strengths and weaknesses and our physical, emotional, and/or spiritual energy health. If you are currently experiencing a very difficult time, or facing a difficult decision, in your life, you may have dreams with bloody or frightening images. Don't worry, you may just be venting your fears, and emotions.
Bleeding - suggests you are losing energy because of inner conflicts or waking conflicts. Feelings of being emotionally drained. It may also represent guilt. Dreaming about bleeding usually always points to the emotional wounds that you don't acknowledge.

Strangers - If the person reminds you of someone you know.. think about your relationship with him or her, and the issues that the dream has brought up, or how you relate to the person that is being represented. If these people are totally unrecognizable (they don't remind you of anyone you know)... they would represent different, and unknown, aspects of yourself. They are extensions and projections of your own subconscious, and personality. Alternately, a stranger may represent an unknown fear, or danger, you feel in your waking life.

Wanting to return to Earth - would represent you wanting to return 'home'.....where you feel most 'at home'.

Door - as a boundary, they represent feelings you use to shut others out of your life, to remain independent or private to being open or inviting. As a passageway, they represent going from one state of consciousness to another, or from one inner plane to another. To dream that you are entering through a door, signifies new opportunities that will be presented before you. You are entering into a new stage in your life and moving from one level of consciousness to another.

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Have you been having a situation where it's difficult to make a decision?
Are you feeling run down, or drained of energy & need a rest?
Is there some problem really bothering you?
Do you feel unmotivated, or unsupported?
Have you been offered an opportunity, and you're trying to make a decision about it?
Has anything caused you anger recently?
Has someone hurt your feelings recently, or said something that upset you?
Is there a situation that has gotten out of control, or something you feel is ruining your life?

Hope I could give you some insight, best wishes!