The Apostle Paul writes in his First Letter to the Corinthians about the importance of the spiritual gifts and the preeminence of Charity; even if all the gifts are perfect like Mercy (amability, affability, benedicence), The fear of God (constancy, firmness), there are gifts more perfect than others. That is why he affirms in his letter: Earnestly desire the greater gifts, 1 Corinthians 12:31.
Seeing the Kingdom of God (Gospel of John 3: 3) means in the Christian faith receiving the Holy Spirit, in philosophy it has another name: Gnosis. Thence, several primitive branches of Christianity were Gnostic.
With the "Gnosis" we receive more perfect gifts: the seven gifts of the holy spirit of the sacrament of confirmation.
Gnosis is repentance of heart asking God for wisdom, but neurologically is the creation of new synapses.
When new synaptic routes are created the thought changes, this is called "spiritual birth". The contemplation or contemplative activity  reinforce these new routes, makes them stronger.
As a result of this change in the synaptic network new skills gradually emerge, we call these skills perfections or spiritual gifts: the gifts of clairvoyance, prophecy and sacred listening.
These gifts are the "Third Eye" or "eye of the mind". Through this eye we make contact with the same eternity of God, "We contemplate the eternity", we perceive the past, the present and the future. We perceived time with the intelligence of the understanding to the own of God`s eternity.
Can we see what is about to occur? Can we see the future from God's eternity? Is there fate? Are we destined to "something" or "towards something"? These are fundamental questions that the human mind makes itself.
Thomas Aquinas teach us the concept of predestination. Destiny is a form of predestination. We are destined to salvation and blessedness or damnation, according to our lifestyle.
If we are destined to something it is towards one of these two goals.
When an oracle sees the future the profecy is good as long as they are considered the options to the subject to which it is intended.
Example: when Croesus,king of Lydia, thought to invade Persia, he consulted an oracle. The oracle answered him that if he invaded Persia an empire will be destroyed. The prophecy was fulfilled in the sense that Croesus invaded Persia, and they destroyed his kingdom. But Croesus have had to make a decision, invade or not. The oracle told him he had to make a decision and he take it.
Another example, when Achilles had to make the decision to go to Troy one oracle gave him two options: a long life or a short life full of fame and glory. And the oracle adds that if the attack Troy he will no return alive. Achilles take his decision and chooses the second option.
The oracles when they are good and complete they give us options, elections, and where those choices lead us, or to say to which roads.
"A prophecy or clairvoyance when is complete is always a conditional", "if you do this or that ...."
An oracle can not change our predestination, we choose or the blessed life or the unfortunate life. We are who we choose to be, we are architects of our destiny. The fate and future are not written.