Applying the as-needed sensory amplification technique is no different than constant sensory amplification. It is used only when a foul (a return to a wakeful state) is imminent or when lucid dreaming vision starts to blur and fade. For example, while traveling in lucid dreaming everything may start to blur, signaling a weakening of lucid dreaming. At this moment, the practitioner should touch every available object and observe everything in fine detail. As soon as everything returns to a clear and realistic state, actions may be continued without needing to perform amplification.