The tradition that Sarva follows is known as Vaishnavism(Vishnu-centered tradition) who worship the supreme personality/godhead in the form of Vishnu, Krishna, Narayana. Most Hindus today are Vaishnavists. Most Vaishnavists are dualists, in that they believe that the world, god and soul are all real and separate from one another(known as tattvavada, the philosophy of reality) This is stark contrast to the Upanishadic Advaita, which believe that the world, god and soul are ultimately unreal, simply forms or manifestations of the ultimate reality of Brahman(The philosophy I subscribe to)
According to to Vaishnavists god has a supreme form and he is the source of all glorious qualities and virtues. He is perfect, only one, par excellence and none can parallel him.
While many Vaishnavists consider god as having no human form or particular name, the Gaudiya Vaishnavists consider god to literally be Krishna, have his form and his names. Thus they oppose any other description or name of him(e.g., Shiva, or Jehova, or Allah)
There are some Vaishnavists who consider themselves one with god or god themselves, but they are a minority viewpoint and not representative of Vaishnavism as a whole. Most Vaishnavists see god as a completely separate entity and sovereign of the world and souls. This supreme godhead is controlling everything in the world, every atom and every soul(Hence he is known as Antaryamin(inner controller) too) Thus nothing is in our individual control, no amount of personal effort made by us is enough for us to attain salvation. Salvation can only be WON through’s god’s grace.
To win god’s grace one must serve him, please him and worship him constantly. At the same time they must perform service to the world and other souls in the world, perform all their duties selflessly. If god is pleased with the soul, then god will reward that soul by granting them entry into heaven(Vaikuntha) and there the soul will be given the privilege to be in eternal servitude to god(sounds great, can’t wait :P) It gets better, there will a gradation in which level of heaven one would enter, based on the soul itself. This is not based on their merit(karma), but on the intrinsic qualities of the soul. If the soul was originally tamasic, it will enter the lower levels; rajasic, it will enter the intermediate levels and sattvic, it will enter the higher levels. There is no scope for any mobility here between levels, you are stuck at the level you are predestined for.
For souls that displease god there is a more morbid future awaiting: eternal damnation. Where the soul enters one of the 7 hells where it is subjected to endless torture.
I can hear people say, 'Hang on, is that Hinduism or some Abrahamic religion?" Unfortunately, it is Hinduism. In fact it is the most popular form of Hinduism today. Most Hindus believe in this Puranic form of Hinduism. In the Garuda Purana you will find extensive descriptions of the kind of torture that we are subjected to in hell for displeasing god. In other Puranas you will find extensive descriptions of the 7 heavens and the beings who populated them, the fun and frolics, the heavenly nymphs dancing to please men, as if straight out of an Islamic scripture.
If you examine Puranic Hinduism you will find the same dogma, nonsense, fairy tales, superstitions and unscientific theologies to give any Abrahamic religionist a run for his money. The description of Puranic astronomy for example makes Christian flat earthers look a little sensible:
This of course has got nothing to do with the original Santana Dharma of the Vedas. As I demonstrated earlier, the original Sanatana dharma is a religion of spiritual humanism which promotes spiritual development, social development and scientific development. It has no place for the garbage of Puranic Hinduism.

