Quick answer
Get Aura through the current in-game action, use Aura to increase Power, then test the next reachable wall; exact rates, costs and thresholds are unavailable.
Start here when this is the exact player task you searched for. The sections below turn the question into steps, checks, and next pages.
The official Roblox description confirms Aura is used to increase Power. Check the current in-game Aura action, confirm the balance changes, apply Aura through the visible Power control, then test the next wall.
No exact rates, costs, thresholds or fastest-method comparison are documented. If stuck, first verify Aura changed; second, return to the Power step. Use the progress checklist for the next action and keep the official-description source label with this guidance.