Owls have been since ancient times been associated as the animals of wisdom, even in the ancient Greek the goddess Minerva was always together with an owl. Pallas Athena Minerva was the goddess of wisdom and power, by power they meant that words are more powerful than fighting . Presenting together all the wisdom in the world and wit the wisdom of the moon. But this is for the ancient Greek.
Native Americans associate the owl also with wisdom and shows up when someone is
in a state to leave the earth.

Contacting owl energy is powerful and is making us to look inside us seeking for the wisdom wich
is already been inside us but needs to be found with a little bit of help.
Perfect for when the answer is on the point of coming out but fear is blocking the way out, and you can see it more in an loving and spiritual perspective so I can say owl energy can reach to the
higher self.
But in the mean time owls are here to remind us to stay more positive and to stay true to who we are,
changing for others is never the solution to problems.

Well like a lot of people say is that cats are the portal to the other side but cats are not alone if we
need to believe some of us think owls are realm keepers too and a lot of stories tell us owls
are bringing the departed souls back to the realm they can feel at home.
But it is just the way other people see the owls.

You know immediately if owl energy it coming to you, you will feel supported but also new ideas and truths come inside us. But they also come for those who find it difficult,  Most of the time owl energy is coming spontaneous. But we can ask them to come if there is need behind it.
Owls like to visit during sleep or meditations so I think meditation is the best way ( during sleep you might forget some things luckily all the answers and wisdom is kept hidden inside us even if we don't remember this)
The point is with asking for an owls help during meditation is they really come when it is right.
You can visualize an owl when you need the owl energy their energy can be found everywhere but it is different than asking them.