What deviates from Tathata?

athata is the state of existence; it is as simple as, whatever exists is Tathata.
But, at the same time, whatever does not exist is NOT Tathata.
Tathata is one big NOW.
The past doesn’t exist in it, and neither does the future.
When we see objects, people, situations, they exist AS THEY ARE, in Tathata, but we don’t stop there.
We think about their utility (likes/dislikes), and our thoughts begin to form a plan to acquire them.
Thoughts start now, but their fruits will come later.
By thinking, we are planting a new seed whose fruits will come in the future.
The future is outside the Tathata.
Every thought has consequences.
By even thinking of acquiring something or someone, we leave our nature behind and embark on a journey into the future.
What happens after thinking?
It creates a new identity for us, and we lose our true identity.
Our new identity is not the one we had in Tathata.
We lose touch with it and get lost in the complex web of Sansar, and lose the peace and tranquility of Tathata.
Nice synopsis by Abhijit
Ego ahamkar, sansar and the interaction between the two via mind as raag dvesha (likes and dislikes)  leading to kaam, karma and kartitva (seeking, doing and becoming).