Upright meaning
Man is the delight of man, and also dust. Lean on the people around you and be someone they can lean on. Nobody does this alone.
Reversed (merkstave)
Maðr looks the same either way up, so it has no reversed meaning. Read it upright every time.
A question to sit with
Who have you not yet asked for help?
Its ætt
Maðr belongs to Tyr's ætt, the runes of people, honour and what you inherit and pass on.