"Sufism" is the correct term for the mystical tradition of Islam.
Of Islam.
a. Sufism
Sufism is mainly practiced by the Muslims. But the Hindus, the Buddhists and the Christians also practice Sufism.
Ruhaniat is a term in Sufism that refers to the esoteric or spiritual aspect of the teachings. It encompasses the mystical experiences, personal transformation, and connection to divine guidance that individuals may seek in their spiritual path within Sufism.
This is a question asking for opinion rather than fact and therefore cannot be answered. Sufism (a mystical form of Islam) is only more realistic than other religions to those who practice sufism. To a Christian, Christianity is more realistic; to a Taoist, their religion is more realistic.
Neither Orthodox Sunnis nor Orthodox Shiites are terribly mystical. The mystical form of Islam is best known as Sufism. Most Sufis are considered Sunni Muslims, but live and act in a way quite different than the Orthodox Sunnis.
The sufis give more impotance to their innerself than the outward appearance. It may be called mysticism.
Namaz
Sufism developed rather organically within the Abbassid Empire and early records are hard to find since Sufism was inherently esoteric and its practitioners could be guilty of heresy (bidaa'). The earliest known Sufis were in what is now Iraq and Iran, but many Sufi orders formalized in Turkey centuries later.
Prophet Muhammad SAW is father of Sufism . He is fountain of all sects of Sufism .
Because Sufism is about peace, spirituality and closeness to God which is what Islam is all about. Conclusion: Islam is Sufism and Sufism is Islam.