Upright meaning
The yew, evergreen and enduring. You are stronger than this moment. Change is happening at the root.
Reversed (merkstave)
Eihwaz looks the same either way up, so it has no reversed meaning. Read it upright every time.
A question to sit with
What part of you stays constant through every change?
Its ætt
Eihwaz belongs to Heimdall's ætt, the runes of forces outside your control and the growth they force.