The real liberation or nirvana or meaning of salvation as explained by Adi Sankaracharya, Jesus Christ, Gautama Buddha, Lord Krishna etc is one and the same.
This physical world, which consists of the inert objects like Sun, Moon, Stars Air, Earth etc., is not the world, which is binding you and this is not the world from which you have to attain the liberation or salvation.
If you get salvation from this physical world it is called the death.
Death is not the salvation since even after death you are bound by the bonds.
The bonds are not with the physical world but they are with your family members; It is this family that constitutes your entire world from which you must be salvated.
The physical world is real and it is unreal for the creator only and not for you, You are a part and parcel of this world and if you say that this world is unreal.
You too become unreal, your unreal world is your own family, which is created by yourself only and why this is unreal ?
If you analyse, these bonds did not exist before this birth and do not exist after this birth and hence are not existing during this birth also.
Adi Sankaracharya told that temporary is always unreal, therefore, BhagavadGita emphasizes for the detachment from these worldly bonds.
Jesus goes one step further and advises you even to hate these family bonds.
This is surprising but if you analyse, I should say, He is absolutely correct. If you analyse deeply, these family members deserve your hatred and not love.
The reason is that these family members were very vehement enemies to you. In the previous birth you stole their hard earned property and fought with them.
Now they have come to collect their wealth from you along with the compound interest, they are in the form of wife and children and you are bound to pay them according to the force of Karma Chakra i.e., associated with Kala Chakra.
Payment of loans is Karma Chakra and payment in this birth is Kala Chakra
The same is said ‘Runanubandha Rupena Pasu Patni Sutalayaah’
The three strongest bonds today are with money, wife and children and these three
Are called as Eeshanaas, which are the stainless steel chains, which never corrode.
The secret in the force of these three bonds is only the force of Karma.
The Karma is the payment of the loans with interest and for that you have to earn. Therefore, you are forced by Karma to earn the money and that is the spontaneous.