This quote has been attributed to a few people, including Carl Jung, who each present their interpretation slightly differently.
The way I understand it is that your past can define you which can make you stuck but if instead you create a vision of the life you truly want it is there for you.
When I am coaching leaders, I hear many exclaim that although they have a vision to move their organization forward they are limited due to lack of resources and/or talent, time, competitors on their heels, and/or the boss or the Board does not feel it is warranted or they just reject it outright without clear explanations. How frustrating!
As we discuss options, sometimes it is the leaders themselves that are the issue.
Although they have a vision it is either not clearly laid out or it does not take into account external factors. They see that their plan is THE ONLY plan when other creative ideas are just looking to be found.
This is when brainstorming helps but it goes beyond that. It takes a real careful analysis of why they developed this vision this way.
Is it from past experiences that they were successful at? Is it from past experiences where they were not able to execute so now they perceive it as their chance?
Are they blaming others, etc. and not willing to admit they are the issue; in other words, do they have blind spots? Are they just inexperienced although they think they are quite adept?
Obviously every human is complex so it may be a combination of several factors. 
Regardless it takes real accountability of oneself to determine what is the real issue or issues and what can be done to change it.
Those who have faced these types of conundrums turn to trusted advisors who try to provide assistance which is good but it is not the end all be all.
These leaders also need to take time for self reflection by looking at what is really at stake. Maybe they have created a well crafted vision but the timing may not be right or the plan has too short a time frame.
There may also be other factors to take into account like the motivation of their team members; some may have other priorities or desires that don’t align with the vision – at this time or maybe never.
An effective leader should seek counsel from their team as well.
They should also not only keep an open mind but willing to remove or change parts or all of their plan.
They also need to reach out to customers (internal and external) to get their views on this. This is not to divulge secrets but to get a better assessment of how they are perceived as a leader, team, and an overall organization.
Many “great” ideas that were conceived at the most senior levels of an organization were later a total bust once implemented, such as changing the formulas for Coke and Reese’s Peanut Butter Cups as examples.
To help leaders, here is a framework to use the next time you are setting goals or creating an overall vision. I call it the “Cing Your Vision” framework.
Create – Brainstorm as well as research. Get all ideas down and then prioritize.
Communicate – Use action words and be succinct. Keep in mind your audience when delivering your message.
Consult – Present initial ideas, goals, and vision to those you are accountable to in order to solicit feedback.
Collaborate – Discuss with other stakeholders and team members to see it from their viewpoint while incorporating the feedback you received before.
Challenge – Question your steadfast beliefs and consider alternatives. Have a Plan B, C, etc.
Coordinate – Gather all the information you have received from others and lay out a timeline and objectives.
Craft – Develop your vision but make it more like a flowchart with different paths that can be taken in case an issue arises.
By using this framework, it reduces the chances that you will encounter obstacles in executing your vision.
Do keep in mind though that if the ones who will be part of this vision can’t actually see the outcome it will be that much harder to implement.
Be patient and listen fully.