This is one of the most profound and advanced Lal Kitab secrets regarding the current age (Kali Yuga).
Jupiter is the planet of pure righteousness, honesty, and spirituality. However, in the corrupt, fast-paced age of Kali Yuga, pure honesty is often exploited. Dr. Sharma explains that a pure Jupiter in the 1st house will actually fail and suffer in today's world ("Kaliyug mein safal na hoye").
To survive and succeed, this Jupiter desperately needs the aggressive, authoritative, and royal energy of the Sun (Surya). If the Sun is strong in the chart, the person will succeed. If the Sun is weak, their pure goodness will be crushed by the world, and they will suffer their whole life ("umar bhar roye").