The mountain is regarded as a symbol of hope and wish, business, organization, rank, personality, state institutions, social organizations, etc. However, the dream of a landslide and the soil collapsing suggests that the goal or work you are doing will fail and lose ground. For example, a company may go bankrupt, lose its job, or lose its property. The way to reduce losses is to carefully check if there are any loopholes or vulnerabilities in what you are doing or planning, and not increase the size of your business.