Upright meaning
The elk-sedge, a raised hand of protection. Your instincts are sound; follow the warning signs and you will be safe.
Reversed (merkstave)
Your guard is down, or up too high. Either you are exposed, or you are shutting out help that could reach you.
A question to sit with
Who or what makes you feel safe, and are you letting them in?
Its ætt
Algiz belongs to Heimdall's ætt, the runes of forces outside your control and the growth they force.