To see a vision from God you need to develop a strong relationship with God through Studying Gods word, meditation and pray.
You also should be open to receiving God's guidance and need to be patient, as God will reveal his vision to you in his own time.
When seeing a vision from God it's also important that you discern whether a vision is really and truly from God by also comparing the vision to biblical teachings.
To develop a strong relationship with god you should pray and regularly talk to God and express your desires and seek Gods will for your life.
Practice meditation and spend time in quiet reflection, and focus on God and Gods word.
And study the Bible and familiarize yourself with God's teachings and his principles, as they are also a source of truth and guidance.
And some people also find that fasting, when coupled with worship and prayer, can also enhance their receptivity to God's voice and visions.
Seek out God's vision by praying specifically for God to reveal his vision for your life and be open to receiving of visions or messages in various forms, like dreams, impressions or even through other people.
And be mindful that not all visions are from God and test them against the biblical truth.
And seek confirmation from trusted spiritual leaders or through other means.