No, they can't. Did you understand the verse that
@brightfame52 posted to you? It states specifically the opposite of that. No one has the Holy Spirit indwelling them until saved. Only a very few have come into this world from the womb unblinded. Everyone else, therefore, starts out in a spiritually blinded state. They will remain so with the true meaning of the gospel hidden by the god of this world. Being in a spiritual blinded state, something must happen to them on the spiritual level, not the physical level, to remove that blindness - physical sight or physical reading of the gospel by natural man cannot pierce it. After salvation, it will be removed, and the gospel message will begin to shine through to them, growing over time, even if initially they are unaware of what has caused it.