Vision: If you dream you are taking a walk and somebody joins you: you will soon find a new friend. Accompanying a friend to the airport or train station, etc., means illness or being separated from someone.
Depth Psychology: Being accompanied by a person you don’t recognize: something in you, some part of your personality, has grown up and wants to “to go its own way.”... Dreamers Dictionary
You can expect a general improvement in all that concerns you if the main aspect of your dream was one of pleasant companionship, unless the dream involved a departed or former companion, in which case it forecasts some unexpected anxieties.... The Complete Guide to Interpreting Your Dreams
(Friendship) If a sick person sees himself walking on the road along with a friend or travelling with him in a dream, it means that he will recover from his illness. Accompanying an unknown person on the road in a dream means suffering losses. Walking in the company of a relative in a dream has a negative connotation.... Islamic Dream Interpretation
(Followers; Righteous people; Successors) If one sees in a dream that one of the companions of God’s Messenger, upon whom be peace, his followers or their successors entering a town or locality that is suffering under natural adversities, oppression or war, it means relief for its people and reversal of their conditions. It could also mean that their leaders will become guided again.
To see the gnostics of a land means increase in one’s knowledge.
To see the wise men of a land, means increase in one’s wisdom.
To see the preachers of a town in a dream means spiritual growth and increase in one’s happiness.
To see the righteous dwellers of a land and God’s trustees therein in a dream means increase in one’s devotion. Ifone sees past companions alive in a dream, it means prosperity, justice and economic growth for the inhabitants, coming from a God-fearing leadership.
If one sees himself resurrecting one of the companions, their followers or successors in a dream, it means that he will revive his practices and traditions.
If one sees himself turned into one of the known righteous companion or followers of God’s Prophet, upon whom be peace in a dream, it means trials in one’s life to equal the exalted station of such blessed beings, though the end is praiseworthy.
(Also see Righteous people; Scholars)... Islamic Dream Interpretation
(1) If in your dream you have a friend or companion of the same sex as vourself, he or she may svmbolize your alter ego or shadow, which consists of those aspects of your personality that vou have so far neglected or repressed. (Even in real life we may project on to other people some of the contents of our own unconscious - repressed sadism, for instance, or an inferiority complex.)
The conscious ego, says Jung, cannot safely explore the deeper regions of the psyche without the shadow. In other words, there is little chance of re-rooting oneself in the true centre of one’s being without first acknowledging that there are aspects of one’s personality other than those that one has allowed into one’s conscious life. (On shadow).
(2) If the friend / companion in the dream is of the opposite sex, he or she may represent the animus / anima. The anima is the feminine side of a male psyche, the animus the masculine side of a female psyche. Acknowledgement of this contrasexual element in the psyche, and its assistance in tackling life’s tasks, are essential for personal wholeness (for anima / animus, see Brother / Sistcr, section (4)).... A Dictionary of Dream Symbols