"Craft a compelling Concept Proposal for the immersive exhibition 'The Echo of Space: Shaping the Soul's Landscape.' This exhibition transports visitors through diverse environments, from bustling cities to serene nature, showcasing the profound impact of space on emotions. Outline the key features of the exhibition, including immersive environments that transport visitors through dynamic installations, interactive engagements that encourage personal reflection and exploration, emotional exploration that elicits varied responses for deeper understanding, and practical applications offering actionable tips for creating harmonious living spaces tailored to individual needs. Describe the audience engagement strategy, targeting design enthusiasts and those interested in mental well-being, with immersive design experiences and interactive workshops. Conclude the proposal by highlighting how 'The Echo of Space' celebrates IKEA's commitment to holistic well-being and innovative design, inspiring individuals to create nurturing environments.