Moksha means liberation; it’s the concept of ultimate freedom from the cycle of life and death.
Hindus believe that there is no death for the soul or atman. When the soul leaves this body it passes through a cycle of successive lives. Its next incarnation is always dependent on past deeds. Without ultimate liberation, we reincarnate again and again in the form of human or any other living being. This cycle of life and death can only be broken when a soul attains Moksha.
Moksha is one of the human pursuits and it can be achieved when a human being pursues self-realization. It is achieved by ending false ego and desires. Moksha is attained only when all good and bad karmas of many lifetimes are exhausted and God is fully realized.
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Other reading material: HAF: What is moksha?
Relevant videos: Swami Nikhil Anand Swami Nikhil Anand: What Is Liberation
Contributor: Geetha Ravula
Location of this post (13c): https://www.hinduspeakers.org/ufaqs/what-is-moksha/