Here is putting everything in simple one-liners. Each is an independent line, defining some of the commonly used spiritual/Adhyatma terms. If it does not click for you, you need to get into the details, which are there in the knowledge section or blogs.

Karma

Whatever you are doing to others, you are doing to your future self.

You reap as you sow. You sow as you act. You act as you think. You think as you intend. Know what you intend and clean it up, you will reap the rewards.

Karma means your effort will be rewarded. So also your lack of effort.

Dharma

It is what you expect others to do, if they were you.

Its your responsibility in context/situation and conduct of life

I communist I – Communism that starts and ends with yourself.

Give according to your ability, take according to your needs.

Take what you need to give what you can

Moksha/Liberation

When trouble does not trouble you.

Liberation is liberation from all negative emotions

Self-realization/Enlightenment/Soul-realization/Atma-sakshatkar

When you know what you are not

To see yourself as others see you and to see others as they see themselves

You are on (your own) TV!

Identity ego/Ahamkara

It is what we don’t like about others, but don’t see in ourselves

I am the doer, I am the reason for everybody’s doing

I me myself

Spirituality/Adhyatma

Know thyself, like really really know thy Self

I want happiness. When the I and want go, only happiness remains.

Any other one-liner definitions you would like me to add?