Rabbi Eliyahu E. Dessler wrote (Michtav Me'Eliyahu Vol. 4, pp.162-3; Vol. 5, pp.163, 199) that the soul has an awareness of G_d and the spiritual realm. Yet if we experienced this with our conscious mind we would be so overwhelmed we would not have free will.

That means, if we constantly experienced the higher spiritual goodness we would always make our life's decisions in accordance with what is "correct" in heaven -- G_d's will.

But the job of choosing between "good" and "evil" is essential to our experience in this world. That's how we earn merit for being Great Human Beings.