The plans of God

How can we know God's plan? For life..., for us..., for our children,.... for the world?

1 Corinthians 2:6-12,14
"We do however, speak a message of wisdom among the mature, but not the wisdom of this age, who are coming to nothing. No, we speak of a secret wisdom, a wisdom that has been hidden and that God destined for our glory before time began. None of the rulers of this age understood it, for if they had, they would not have crucified the Lord of glory.

However, as it is written:
" No eye has seen,
No ear has heard,
No mind has conceived
What God has prepared for those who love Him"

but God has revealed it to us by His Spirit.

the Spirit searches all things, even the deep things of God. for who among men knows the thoughts of a man except the man's spirit within him? In the same way no one knows the thoughts of God except the Spirit of God. We have not received the spirit of the world but the Spirit who is from God, that we may understand what God has freely given us."

v14
"The man without the spirit does not accept the things that come from the Spirit of God for they are foolishness to him, and he cannot understand them because they are spiritually discerned."